a-: away, from, out. in, on. Anglo-Saxon intensifying prefix. out, wholly. absence, lack.
ab-: away from. electromagnetic unit in the centimeter-gram-second system.
abs-:away from, without
ac-: to, toward, near.
acet-, aceto-: methyl group bonded to a carboxyl group.
acr-, acro-: sharp. tip. extremity. peak.
ad-: near, at. toward, to, tendency, addition.
aer-, aero-: air, aircraft.
agr-, agri-, agro-: agriculture.
al-: near, at. toward, to, tendency, addition.
allo-: different. ( chemistry isomeric, especially of amino acids having two chiral centres. )
ambi-: both, on both sides.
ana-: up. on. again. apiece.
andr-, andro-: human. man, male.
angio-: blood vessels, lymph vessels.
Anglo-: England, English. Anglo-Saxon.
anthrop-, anthropo-: man, human.
ante-: prior to in time. in front of in space.
ant-, anti-: against, hostile to. opposite of, reverse. counteracting, neutralizing.
ap-, apo-: away from, separate. without, lacking. ( chemistry derived from, related to. )
aqua-, aque-, aqui-: water.
arc-: ( mathematics Used to form the names of inverse trigonometric and hyperbolic functions, and also the symbols for these functions. )
arch-, archi-: chief, highest, most important. earlier, primitive.
archaeo-, archeo-: ancient, early, primitive.
arterio-: ( medicine artery. )
arthr-, arthro-: ( biology joint, articulation. )
astr-, astro-: star. celestial body.
aut-, auto-: regarding oneself. automatic. car, driving.
azo-: ( chemistry nitrogen. )
bacter-, bacteri-, bacterio-: bacteria, bacterial things, bacteriology.
bar-, baro-: pressure.
bathy-: deep, especially deep sea.
be-: as an intensifier. on, around, about, concerning, over, in contact with. verbs derived from nouns or adjectives.
benz-, benzo-: ( chemistry benzene, six-carbon aromatic ring. )
bi-, bin-: two. ( chemistry old, common method used to indicate the presence of an acidic hydrogen. )
blast-, blasto-: bud, budding, germination.
brom-, bromo-: ( chemistry bromine. )
bronch-, bronchi-, broncho-: ( medicine bronchus, trachea, airways to the lungs. )
by-, bye-: next to, parallel, alternate.
carb-, carbo-: ( chemistry carbon. )
carp-, carpo-: area around human wrist
cardi-, cardio-: heart.
cent-, centi-: hundred, one-hundredth. 10 -2.
cephal-, cephalo-: ( biology brain or head. )
chalco-: copper, brass. ore.
chem-, chemi-: chemicals, chemistry.
chemo-: chemicals, chemistry.
chlor-, chloro-: green. ( chemistry chlorine. )
Christo-: Christ. Christian.
chron-, chrono-: time.
cis-: on this side of. ( chemistry compound in which two atoms or groups are situated on the same side of some plane of symmetry passing through the compound. )
co-: together, mutually, jointly. partner or subordinate in an activity. to the same degree.
col-: with, together, joint. used with certain words to intensify their meaning.
com-: with, together, joint. used with certain words to intensify their meaning.
copr-, copro-: excrement, dung.
con-: with, together, joint. used with certain words to intensify their meaning.
cor-: with, together, joint. used with certain words to intensify their meaning.
cosmo-: universe, world.
counter-: in opposition to.
cryo-: cold, freezing.
crypto-: hidden, secret.
cyan-, cyano-: dark blue-green in color. ( chemistry cyanogen, cyanide. )
cyber-: computer. cyberspace.
cycl-, cyclo-: circle. cycle. ( chemistry cyclic compound. )
cyt-, cyto-: ( biology cell. )
de-: reversal, undoing, removing. intensifying. from, off.
dec-, deca-: ten. 10.
deci-: tenth part. 10 -1.
deka-: ten. 10.
demi-: half. one that partly belongs to.
deoxy-: ( chemistry compounds that are formally derived from others by the replacement of a hydroxy group by a hydrogen atom. )
deuter-, deutero-: second (in the sense of next after the first).
di-: two, twice or double. through, across. reversal, removal. apart. intensifying.
dia-, di-: through, across.
dichlor-, dichloro-: ( chemistry two chlorine atoms. )
dinitro-: ( chemistry two nitro groups (-NO ) 2).
dipl-, diplo-: double.
dis-, di-: reversal, removal. apart. intensifying.
dodec-, dodeca-: twelve.
dys-: abnormal. difficult. impaired. bad.
eco-: habitat or environment. ecological, environmental (in the ecological sense).
ecto-: outside, external.
eigen-: own (adjective).
electr-, electro-: electricity, electric. electrolytic. electron.
em-: in, into, on, onto, within. covered. caused. provide with. as intensifier.
en-: in, into, on, onto, within. covered. caused. provide with. as intensifier.
end-, endo-: inside, within. taking in.
ent-, ento-: inside, within, inner.
epi-: above, over, on, upon, outer. in addition to, besides, attached to. after. chemical entity related to or distinguished from (such) another.
equi-: equal, equally.
ethno-: race, people, cultural group.
eu-: good. well, easily. true.
Eur-, Euro-: Europe, especially as a political entity.
ex-: out of, outside. not. former.
exa-: quintillion. 10 18.
exbi-: 2 60.
exo-: outside, external, outer. turning out.
extra-: outside, beyond.
femto-: 10 -15.
ferro-: iron (element). ( chemistry ferrous. )
fluor-, fluori-, fluoro-: fluorine. fluorescence.
for-: from. against, so as to involve prohibition, exclusion, omission, failure, neglect, or refusal. destructively, detrimentally. completely, excessively, to exhaustion, to pieces.
fore-: before, in front of, front, foremast. earlier, beforehand.
full-, ful-: fully, completely, in full
gain-: against, contrary to.
gastr-, gastro-: stomach, gastric. cooking.
geo-: earth, ground, soil. geography.
gibi-: 2 30.
giga-: billion, 10 9. ( computing 2 ) 30.
gen-, geno-: genetics, genus. family, tribe, race, offspring.
gyn-, gyno-: women. female reproductive system. female reproductive organ.
gyro-: circle, circular, spinning, rotating.
haem-, haemat-, haemo-: blood.
hagi-, hagio-: Pertaining to saints.
hect-, hecto-: hundred. 100.
heli-, helio-: sun.
hem-, hemat- : blood.
hemo- : blood.
hept-, hepta-: seven. seven atoms, seven groups.
hetero-: other, different, other than usual. atoms of different kinds.
hex-, hexa-: six. six atoms, six groups.
hind-: back, rear, in reverse.
hinder-: positioned toward the rear, back.
hist-, histio-, histo-: ( biology tissue. )
hol-, holo-: whole, complete, total.
homo-: man. same, similar, alike. homosexual.
hydro-: water, liquid. ( chemistry hydrogen. ) ( mineralogy hydrous compound. ) ( zoology hydrozoa. )
hyper-: over, above, beyond. excessive. existing in more than three spatial dimensions. linked non-sequentially, bridging points within an entity (as a database or network) nonsequentially.
hypn-, hypno-: sleep. hypnosis.
hypo-: below, beneath, under, down. deficient, less than normal. ( chemistry in lower oxidation state, in low and usually the lowest position in series of compounds. )
il-: not. in, within, into. toward, on, onto. lacking, without. covered. caused. provide with. as intensifier.
ill-: bad, wrong.
im-: not. in, within, into. toward, on, onto. lacking, without. covered. caused. provide with. as intensifier.
in-: not. in, within, into. toward, on, onto. lacking, without. covered. caused. provide with. as intensifier.
Indo-: India. East Indies. Indo-European.
inter-: among, between, amid. reciprocal.
intra-: inside, in, into, inward, interior, within. during, between.
ir-: not. in, within, into. toward, on, onto. lacking, without. covered. caused. provide with. as intensifier.
is-, iso-: equal, homogeneous, uniform. ( chemistry isomer. for or from different individuals of the same species. )
kibi-: 2 10.
kilo-: thousand. 1,000. ( computing 2 ) 10.
kuli-: community of one caste in orissa, so some "kuli & kulis" is equal to one caste "kuli & kulis" in schedule tribe that the kuli & kulis is the one & same caste in India.
macr-, macro-: large. long. inclusive.
mal-: bad, faulty. not. abnormal. inadequate.
many-, mani-: many, multiple.
mebi-: 2 20.
mega-: million, 10 6. ( computing 2 ) 20. ( computing, marketing 2 ) 10 * 10 3. great, large.
mes-, meso-: middle. intermediate.
meta-: transcending, encompassing, comprehensive. self-referential. analogies with metaphysics. classifications. change, transformation. ( pathology consequent on. ) ( anatomy, zoology behind. ) ( botany, zoology later, subsequent. ) ( geology analogies and derivatives of metamorphism. ) ( chemistry having fewer molecules of water. ) ( chemistry in isomeric benzene derivatives, having the two substituents in alternate positions. )
micr, micro-: very small. 10 -6. microscopy. microphotograph, microfilm.
mid-: middle, between, with.
milli-: 10 -3. thousand.
mini-: small, brief.
mis-: bad, wrong. lack, failure. opposite, not. unfavorable.
mon-, mono-: one, single, alone.
myria-: ten thousand. 10,000.
nano-: 10 -9. nanotechnology. nanoscale.
necr-, necro-: death.
neo-: new, recent.
non-: not, other than. reverse. absent, lacking. unimportant, worthless, of little or no consequence.
non-, nona-: nine.
oct-, octa-, octo-: eight.
olig-, oligo-: few.
omni-: all, universal.
on-: on, toward, forward.
orth-, ortho-: straight. upright, vertical, perpendicular. right, proper, correct. ( chemistry having extra proportion of water, hydrated, hydroxylated. ) ( chemistry in isomeric benzene derivatives, having the two substituents in adjacent positions. ) ( physics ) of any molecule of the form X ) 2 wherein the two nuclei have parallel spin.
other-: different, other, alternative.
out-: external. surpassing, exceeding, greater, beyond.
over-: above, higher. superior. excessive, surpassing, exceeding.
ov-, ovi-, ovo-: egg. ovum.
palaeo-, pale-, paleo-: very old, prehistoric, ancient. very early, primitive, archaic.
par-, para-: beside, near, alongside, beyond, aside. abnormal. incorrect, faulty. resembling, related, almost. subsidiary, accessory. ( chemistry in isomeric benzene derivatives, having the two substituents in opposite positions. )
pebi-: 2 50.
pent-, penta-: five.
peta-: (United States of America) quadrillion, 10 15. (Great Britain) septillion, 10 24.
phon-, phono-: sound, voice, speech.
photo-: light, electromagnetic radiation, radiant energy. photograph.
phys-, physi-, physio-: nature. physical.
pico-: 10 -12. very small.
post-: after. beyond.
poly-: many. polymer.
pre-: front, anterior (in space). before, earlier, prior (in time).
prot-, proto-: first, beginning, primary. ( linguistics hypothetical ancestor of a family of languages. )
pseud-, pseudo-: false, fake, spurious. pretentious. temporary, substitute.
psych-, psycho-: mind. brain.
pter-, ptero-: wing, feather.
pyro-: fire, heat. fever. ( chemistry ortho acid. )
radi-, radio-: radiation. ( anatomy radius (bone). )
re-: again, anew. backward.
ribo-: set of 3 CHOH molecules
same-: same, similar.
schiz-, schizo-: split, cleft. schizophrenia.
self-: self, ones own
semi-: half. partial, incomplete.
sept-, septa-, septem-, septi-: seven.
sex-, sexa-: six.
step-: related via marriage of parent.
sub-: under, beneath, below. subsidiary, secondary, subordinate. almost, nearly, somewhat.
super-: above, over, upon. superior in size, quality, number, degree, status, title, or position. inclusive.
supra-: above, over, on top. greater than, transcending.
syl-: with, together.
sym-: identical. with, together. concomitant.
syn-: identical. with, together. concomitant.