osmeterium

/oz-mi-teer-ee-uhm/US // ˌɒz mɪˈtɪər i əm //

桂圆,渗透率,锇酸钠,锇酸

Definitions

n.名词 noun

1
plural os·me·te·ri·a [oz-mi-teer-ee-uh]. /ˌɒz mɪˈtɪər i ə/.
- : a glandular process on the first thoracic segment of many caterpillars that emits a noxious odor to ward off predators.