01 n. A sheath; a theca; as, the vagina of the portal vein.
pl.
Vaginae ((#))
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1.
A sheath; a theca; as, the vagina of the portal vein.(Anat.)
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2.
The terminal part of the oviduct in insects and various other invertebrates. See Illust., of Spermatheca.(Zool.) See: Spermatheca
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3.
The basal expansion of certain leaves, which inwraps the stem; a sheath.(Bot.)
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4.
The shaft of a terminus, from which the bust or figure seems to issue or arise.(Arch.)