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retroserrulate

American  
[re-troh-ser-yuh-lit, -leyt, -ser-uh-] / ˌrɛ troʊˈsɛr yə lɪt, -ˌleɪt, -ˈsɛr ə- /

adjective

Botany, Zoology.
  1. having tiny retrorse teeth or barbs.


Etymology

Origin of retroserrulate

First recorded in 1820–30; retro- + serrulate