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apterygial

American  
[ap-tuh-rij-ee-uhl] / ˌæp təˈrɪdʒ i əl /

adjective

Zoology.
  1. having no wings, fins, or limbs, as snakes and eels.


apterygial British  
/ ˌæptəˈrɪdʒɪəl /

adjective

  1. (of eels, certain insects, etc) lacking such paired limbs as wings or fins

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of apterygial

1900–05; a- 6 + Greek pteryg- (stem of ptéryx wing) + -ial