concentric

English

concentric circles

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. By surface analysis, con- +‎ centre +‎ -ic.

Pronunciation

  • IPA(key): /kənˈsɛn.tɹɪk/
  • Audio (US):(file)
  • Audio (Southern England):(file)
  • 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.
    • 2025 February 11, Richard Clements, “First, Love Locally: JD Vance and ‘Ordo Amoris’”, in Word on Fire‎[1], archived from the original on 15 February 2025:
      The ordo amoris can be conceptualized as a series of concentric circles radiating outward from ourselves, beginning with loving God, who is, as Augustine put it, “closer to us than we are to ourselves,” and ending with loving the rest of the world outside our own country.
  2. (physiology) Of a motion, in the direction of contraction of a muscle. (e.g. the extension of the lower arm by means of the elbow joint while contracting the triceps and other elbow extensor muscles; closing of the jaw while flexing the masseter).
    Antonym: eccentric

Derived terms

Descendants

Translations

See also

Romanian

Etymology

Etymology tree
French con-
French centre
Proto-Indo-European *-kos
Proto-Indo-European *-ikos
Proto-Italic *-ikos
Latin -icuslbor.
Old French -ique
Middle French -ique
French -ique
French concentriquebor.
Romanian concentric

    Borrowed from French concentrique. By surface analysis, con- + -centric.

    Adjective

    concentric m or n (feminine singular concentrică, masculine plural concentrici, feminine/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
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