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 (văl′vyo͞ol′) also val·vu·la (-vyə-lə)
n. pl. val·vules also val·vu·lae (-vyə-lē′)
A small valve or valvelike structure.

[From New Latin valvula, from diminutive of Latin valva, leaf of a door; see valve.]


(ˈvælvjuːl) or


a small valve or a part resembling one
[C18: from New Latin valvula, diminutive of valve]


(ˈvæl vyul)

also valve•let

(ˈvælv lɪt)

a small valve.
[1745–55; < New Latin valvula. See valve, -ule]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.valvule - a small valve
valve - a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it
References in periodicals archive ?
First pair or dorsal valvulae and the second pair or ventral valvulae constituted the ovipositor shaft and the third pair formed the ovipositor sheaths.
The surfaces of all the valvulae were covered with sense organs.
Terminalia ochreous, tip of proctiger almost black, tip of dorsal and ventral valvulae dark brown or black, lateral valvulae whitish.
Sculpturing pattern of first valvulae with well delimited maculae joined (Fig.
furcipennis, by its smaller body size ([male]: 3,00 mm; [female]: 3,75 mm), uniform coloration and some genitalia traits: male with the aedeagus with a wider socle and strongly curved expanded laterally stem and the longer phragma with marginal anterior microsetae; female with VII sternite with a median shallow notch on posterior margin and the brownish spot U-shaped, first valvulae with maculae bigger and more separated on the apicoventral sculpturing area, and the subrectangular first valvifer with the anterior margin slightly curved.