Definition of "apterous" []

• Having no wings or winglike extensions: an apterous insect. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "To describe wind-tossed newsprint as "apterous" and to hear in it "the sonorous souls of Russian verbs" distills in three syllables his life in exile."
• "The word is "apterous," new to me and found in the second paragraph of his story "` That in Aleppo Once … '":"
• "In the thoracic segments, located about a third of the way down from the head, certain neuroblasts generate four neurons called the Ap (for "apterous") cluster, distinguished from other neurons by the expression of a specific set of transcription factors."