heteromorph

English

Etymology

From hetero- +‎ -morph, see heteromorphic.

Noun

heteromorph (plural heteromorphs)

  1. (zoology) An ammonite whose shell is unusual in not being a regular spiral.
    • 1971, Oleg Stepanovich Vi︠a︡lov, Fossil Ostracoda, page 15:
      The histial ridge of the heteromorphs is comparatively wide, especially in the anteroventral part, and forms a wide, open cavity —the histial dolon.
  2. Any heteromorphic organism.
    • 2010, Maurice W. Sabelis, Jan Bruin, Trends in Acarology: Proceedings of the 12th International... (page 301)
      Mean body length of heteromorphic males from birds with both types of male morphs did not differ significantly from that of heteromorphs from birds that had only heteromorphic males […]

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