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dertrum

American

[dur-truhm] / ˈdɜr trəm /

noun

Ornithology.

the extremity of the maxilla of a bird's bill, especially when hooked or differentiated from the rest of the bill, as in pigeons and plovers.

Other Word Forms

Inflected Forms

noun

dertra

plural

Etymology

Origin of dertrum

1885–90; < New Latin < Greek dértron membrane, derivative of dérein to skin; compare dérma derma ¹

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.