concentric

English

Concentric circles

Alternative forms

• coencentric

Etymology

From Middle English concentrik, from Middle French concentrique, from Medieval Latin concentricus, from Latin con- (“with, together”) + centrum (“circle, center”). Equivalent to con- +‎ -centric.

Pronunciation

• Rhymes: -ɛntɹɪk

Adjective

concentric (comparative more concentric, superlative most concentric)

1. (geometry) Having a common center.
   • 2020 August 26, Tim Dunn, “Great railway bores of our time!”, in Rail, page 45:

     Seven huge concentric semi-circular rings of stone surround the northern end, and quite rightly are Grade 2-listed by conservation body Historic England.

2. (physiology) (of a motion) in the direction of contraction of a muscle. (E.g. extension of the lower arm via the elbow joint while contracting the triceps and other elbow extensor muscles; closing of the jaw while flexing the masseter).

   Antonym: eccentric. Concentric and eccentric movements are collectively referred to as isotonic (with motion), the antonym of which is isometric (without motion).

Antonyms

• (physiology): eccentric

Related terms

• concentricity
• semiconcentric

Descendants

• Japanese: コンセント (​konsento)
• Korean: 콘센트 (konsenteu)

Translations

having a common center

• Bulgarian: концентричен (bg) (koncentričen)
• Chinese:

  Mandarin: （圓）同心的／（圆）同心的 ((yuán) tóngxīn de)

• Czech: soustředný
• Danish: koncentrisk
• Dutch: concentrisch (nl)
• Finnish: samankeskinen (fi)
• French: concentrique (fr)
• Galician: concéntrico
• German: konzentrisch (de)
• Hungarian: koncentrikus (hu)
• Icelandic: sammiðja
• Indonesian: konsentris (id)
• Italian: concentrico (it)
• Latin: concentricus
• Manx: co-chiarklagh, co-laarnagh
• Maori: pūrite
• Norwegian:

  Bokmål: konsentrisk (no)

  Nynorsk: konsentrisk

• Persian: هم‌مرکزی‎ (hammarkazi)
• Polish: współśrodkowy
• Portuguese: concêntrico (pt)
• Russian: концентри́ческий (ru) (koncentríčeskij)
• Spanish: concéntrico (es)
• Swedish: koncentrisk (sv)
• Turkish: eş merkezli (tr), merkezleri bir, ortak merkezli

in the direction of contraction of a muscle

• Spanish: concéntrico (es)

See also

• concentric on Wikipedia.Wikipedia
• “concentric”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

Romanian

Etymology

Borrowed from French concentrique.

Adjective

concentric m or n (feminine singular concentrică, masculine plural concentrici, feminine and neuter plural concentrice)

1. concentric

Declension

Declension of concentric

		singular			plural
		masculine	neuter	feminine	masculine	neuter	feminine
nominative/ accusative	indefinite	concentric		concentrică	concentrici	concentrice
	definite	concentricul		concentrica	concentricii	concentricele
genitive/ dative	indefinite	concentric		concentrice	concentrici	concentrice
	definite	concentricului		concentricei	concentricilor	concentricelor