fieldmark

English

Alternative forms

Etymology

From field +‎ mark.

Noun

fieldmark (plural fieldmarks)

  1. A key, observable feature that is useful for identification of species in the field.
    • 1967, Eleanore Devine and ‎Martha Clark, The Dolphin Smile: Twenty-nine Centuries of Dolphin Lore, Macmillan, page 240:
      Fieldmarks are its color, its forehead and a very much back-curving dorsal fin.
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