Apterous

Part of speech: adjective

Pronunciation: /ˈæptərəs/

Definitions

1. Not possessing wings or exhibiting severely reduced wing structures that are impractical for flight
2. Describes an organism or insect that does not have wings or has wings so reduced that they cannot be used for flying
3. Refers to creatures that are naturally without wings, or whose wings are underdeveloped and ineffective for flight

Etymology: Aristotle's works already describe creatures without wings, so a Greek word for wingless would have been needed early on. The English term is built from Greek parts: the prefix "a-", meaning "without" or "not," and "pterón," meaning "wing." Adding "-ous," the common English adjective ending, produces a word meaning "wingless." The Greek root also gave English "pterodactyl," the "wing-finger" reptile, and "pterosaur," a "wing lizard." Both routes lead to the same sense, so the difference matters less than the Greek core underneath. The "-pterous" ending itself appears in many scientific words describing insect and bird anatomy, such as "dipterous" (two-winged) and "hymenopterous" (membrane-winged).

Synonyms: wingless