-oid

See also: oíd, öid, and o.i.d.

English

Etymology

From Ancient Greek -ειδής (-eidḗs), -οειδής (-oeidḗs) (the ο being the last vowel of the stem to which the suffix is attached); from εἶδος (eîdos, “form, likeness”).

Pronunciation

• IPA^(key): /-ɔɪd/

Suffix

-oid

1. Resembling; having the likeness of (usually including the concept of not being the same despite the likeness, but counterexamples exist).

   ‎human + ‎-oid → ‎humanoid

   ‎sterol + ‎-oid → ‎steroid

2. (less commonly) Of, pertaining to, or related to.

   ‎lympho- + ‎-oid → ‎lymphoid

   ‎myelo- + ‎-oid → ‎myeloid

   The word myeloid usually means "bone marrow–related" rather than "bone marrow–like," despite that the suffix -oid usually means "-like" rather than "-al/-ar/-ate/-ian/-ic".

4. Added to nouns to create derogatory terms, typically referring to a particular ideology or group of people, by means of analogy to psychological classifications such as schizoid.

   ‎waste + ‎-oid → ‎wastoid

   ‎female + ‎-oid → ‎femoid

   ‎left + ‎-oid → ‎leftoid

   ‎right + ‎-oid → ‎rightoid

Usage notes

• “-oid” may be suffixed to nouns and adjectives to form nouns and adjectives.

Synonyms

• (resembling): quasi-, para-, -form/-iform, -esque, -ish, -ly, -some, -y, (restricted to casual registers) -ass, (forms adjectives from nouns only) -like

Coordinate terms

• -al
• -an
• -ar
• -ate
• -ese
• -ian
• -ic
• -id
• -ish
• -ory
• -ous
• quasi-
• -y

Derived terms

English terms suffixed with -oid

• usneoid

Translations

suffix meaning similar but not the same

• Catalan: -oide
• Chinese:

  Mandarin: 类 (zh) (lèi) (prefix)

• Dutch: -oïde
• Esperanto: -oido
• Finnish: -oidi, -mainen
• Interlingua: -oide
• Italian: -oide
• Latin: -oīdēs
• Old English: -hīwe, -hīwed, -hīwede
• Polish: -oid m
• Portuguese: -oide
• Spanish: -oide

Anagrams

• -iod-, DIO, DOI, I do, IOD, Ido, ODI, iod-

German

Alternative forms

• -oide, -oides (sometimes for substantives)
• -id

Etymology

Borrowed from Latin -oīdēs, from Ancient Greek -οειδής (-oeidḗs), from εἶδος (eîdos).

Pronunciation

• Audio

  (file)

• Audio

  (file)

Suffix

-oid

1. -oid (adjective or substantive)

Usage notes

• The gender of nouns in -oid often is the same as the one from the basic word: Asteroid is masculine like ἀστήρ (astḗr) and also like Stern, Metalloid is neuter like metallum and Metall. However, Ellipsoid is neuter while ellipsis and Ellipse are feminine, yet Ellipsoide is feminine too.
• Common declensions of substantives are:

  genitive singular -en, nominative plural -en, gender m. (e.g. Android, Asteroid, Meteoroid)

  genitive singular -[e]s, nominative plural -e, gender n. (e.g. Alkaloid, Metalloid)

Synonyms

• -ähnlich, -artig, -förmig, -oidisch (adjectives)

Derived terms

• adjectives: adenoid, albuminoid, amöboid, amygdaloid, amyloid, anthropoid, arachnoid, australoid, brakteoid, bulboid, diphtheroid, ellipsoid, epileptoid, grippoid, histioid & histoid, humanoid, hyaloid, hypnoid, hysteroid, indigoid, kretinoid, lichenoid, lipoid, lymphoid, mastoid, mongoloid, negroid, organoid, osteoid, ovoid, petaloid, pithekoid, polypoid, präfixoid, rheumatoid, rhizoid, rhomboid, sarkoid, schimpansoid, schizoid, suffixoid, systemoid, tigroid, zykloid
• masculine substantives: Android, Anthropoid, Asteroid, Humanoid, Meteoroid, Parasitoid, Planetoid, Rhomboid
• masculine or neuter substantives: Porphyroid
• neuter substantives: Affixoid, Albuminoid, Alkaloid, Amyloid, Bakterioid, Dermoid, Desmoid, Digitaloid, Ekzematoid, Ellipsoid, Eutektoid, Feldspatoid, Flavonoid, Globoid, Gruppoid, Haloid, Hyperboloid, Karotinoid (Carotinoid), Kankroid, Karzinoid, Keloid, Kolloid, Konoid, Kristalloid, Lanthanoid, Lipoid, Metalloid, Nukleoid, Opioid, Organoid, Paraboloid, Phelloid, Platinoid, Präfixoid, Prismatoid & Prismoid, Psychoid, Pyrenoid, Pyrethroid, Resinoid, Rheumatoid, Rhizoid, Rhomboid, Sigmoid, Solenoid, Sphäroid, Sphenoid, Suffixoid, Syphiloid, Systemoid, Toxoid, Trapezoid, Typhoid, Viroid, Zebroid, Zelluloid (Celluloid)
• adjectives suffixed with -oid or -id: myeloid, paranoid, schizoid
• neuter substantives with -oid or -id: Dermoid, Desmoid, Haloid, Pinakoid, Steroid
• adjectives suffixed with -id: australid, europid, mongolid, negrid
• neuter substantives suffixed with -id: Amid, Geoid, Halogenid, Ureid

See also:

German terms suffixed with -oid

Polish

Etymology

Derived from Ancient Greek -ειδής (-eidḗs).

Pronunciation

• IPA^(key): /ˈɔ.it/
• Rhymes: -ɔit
• Syllabification: o‧id

Suffix

-oid m

1. -oid

   ‎bakteria + ‎-oid → ‎bakteroid

Declension

Declension of -oid

	singular	plural
nominative	-oid	-oidy
genitive	-oidu	-oidów
dative	-oidowi	-oidom
accusative	-oid	-oidy
instrumental	-oidem	-oidami
locative	-oidzie	-oidach
vocative	-oidzie	-oidy

or

Declension of -oid

	singular	plural
nominative	-oid	-oidy
genitive	-oida	-oidów
dative	-oidowi	-oidom
accusative	-oida	-oidy
instrumental	-oidem	-oidami
locative	-oidzie	-oidach
vocative	-oidzie	-oidy

Derived terms

Polish terms suffixed with -oid

Further reading

• -oid in Polish dictionaries at PWN