Medical Definition of Penta-
1.
1. A combining form denoting five; as, pentacapsular; pentagon.
2. Denoting the degree of five, either as regards quality, property, or composition; as, pentasulphide; pentoxide, etc. Also used adjectively.
Origin: Gr, a later combining form of five. See Five.
(29 Oct 1998)
Lexicographical Neighbors of Penta-
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