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Related to penta-: octo-, hexa-, HEPT, Icosa


Combining form denoting five.
[G. pente, five]

pent-, penta-

prefix meaning "five": pentaploid, pentose, pentoside.


Combining form meaning five.
[G. pente, five]


, penta-, pen- [Gr. pente, five]
Prefixes meaning five,
References in periodicals archive ?
The European Union and California have banned penta- and octa-BDEs, and the sole U.
Three different commercial formulations are sold as penta-, octa-, and deca-bromodiphenyl ether, with each mixture dominated by congeners (variations) with 5, 8, or 10 bromine atoms, respectively.
However, in sunlight, deca-BDEs degrade to penta- and tetra-brominated compounds, which bioaccumulate almost as well as PCBs.