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tryma

American  
[trahy-muh] / ˈtraɪ mə /

noun

Botany.

plural

trymata

  1. a nut having an outer shell that becomes tough and dry and eventually splits open, as in the walnut and hickory.

tryma British  
/ ˈtraɪmə /

noun

  1. botany a drupe produced by the walnut and similar plants, in which the endocarp is a hard shell and the epicarp is dehiscent

"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 tryma

1855–60; < New Latin < Greek trŷma hole, equivalent to trȳ́ ( ein ) to rub down, wear away + -ma noun suffix marking result

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.