There are total 14 letters in Pentamethylene, Starting with P and ending with E.
Total 467 words created by multiple letters combination of Pentamethylene in English Dictionary.
Definition of the word Pentamethylene, Meaning of Pentamethylene word :
n. - A hypothetical hydrocarbon, C5H10, metameric with the amylenes, and the nucleus of a large number of derivatives, -- so named because regarded as composed of five methylene residues. Cf. Trimethylene, and Tetramethylene.