Definition of subspeciation in US English:

subspeciation

noun

  • 1The distinguishing, identification, or naming of subspecies. Now chiefly Biology.

  • 2Biology. The existence, or evolutionary development of, a subspecies or of subspecies.

Origin

Early 19th century; earliest use found in Samuel Taylor Coleridge (1772–1834), poet, critic, and philosopher.

Pronunciation

subspeciation

/ˌsʌbspiːʃɪˈeɪʃn/