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rectrix

Syllabification: rec·trix
Pronunciation: /ˈrektriks
 
/

Definition of rectrix in English:

noun (plural rectrices /-ˌtrəsēz/)

Ornithology
Any of the larger feathers in a bird’s tail, used for steering in flight. Compare with remex.
Example sentences
  • I plucked the outer right rectrix (tail feather), thereby inducing the growth of a replacement.
  • We also removed the central rectrix from the right side of the tail of each adult to determine feather growth rate.
  • Most birds showed signs of moderate to heavy wear of the secondary coverts and rectrices.

Origin

mid 18th century: from Latin, feminine singular of rector 'ruler, governor' (see rector).

Definition of rectrix in:

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