First Known Use: 1832
Dictionary
petiolule
noun pet·i·o·lule \ˈpe-tē-ō-ˌlül, ˌpe-tē-ˈōl-(ˌ)yül\
Definition of PETIOLULE
: a stalk of a leaflet of a compound leaf
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Origin of PETIOLULE
New Latin petiolulus, diminutive of petiolus
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