Definition of ecomorph in US English:

ecomorph

noun

Biology
  • 1Within a species: a population which has distinctive ecological and morphological features; a member of such a population.

  • 2An ecological and morphological type, especially a form whose convergence with that of another organism or organisms (which may belong to different populations, taxa, etc.) is the result of adaptation to similar habitats rather than common descent.

Origin

1950s. From eco- + -morph.