1. pertaining to or situated at the center; central.
  2. Anatomy, Physiology. pertaining to or originating at a nerve center.

  1. a combining form with the meanings “having a center or centers” of the specified number or kind (polycentric); “centered upon, focused around” that named by the first element (ethnocentric; heliocentric).


  1. being central or having a centre
  2. relating to or originating at a nerve centre
  3. botany
    1. Also: concentric(of vascular bundles) having one type of tissue completely surrounding the other
    2. (of leaves, such as those of the onion) cylindrical

suffix forming adjectives

  1. having a centre as specifiedheliocentric

word-forming element meaning “having a center (of a certain kind); centered on,” from Greek kentrikos “pertaining to a center,” from kentron (see center (n.)).


  1. Situated at or near the center; central.


  1. Having a specified kind or number of centers:polycentric
  2. Having a specified object as the center:egocentric.

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