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Webster 1913 Edition

(pĕnˊtȧ-dĕk′ān)

Noun.

[

Penta-

+ Gr.

δέκα

ten.]

(Chem.)

A hydrocarbon of the paraffin series, (

C15H32

) found in petroleum, tar oil, etc., and obtained as a colorless liquid; – so called from the fifteen carbon atoms in the molecule.