lacinia

[luh-sin-ee-uh]

noun, plural la·cin·i·ae [luh-sin-ee-ee] /ləˈsɪn iˌi/, la·cin·i·as.

Botany. a jagged or irregular part of a leaf or petal.
Zoology. the pointed posterior of the maxilla of an insect.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019