plural of pentadecimal

The condition of having five digits (fingers or toes) on a limb

(anatomy) Having five digits on a limb.

plural of pentadecane

(organic chemistry) Any of very many isomeric saturated aliphatic hydrocarbons having fifteen carbon atoms; but especially n-pentadecane, CH₃(CH₂)₁₃CH₃

pentadactyl

(organic chemistry) The aliphatic carboxylic acid having fifteen carbon atoms

(organic chemistry) Any salt or ester of pentadecanoic acid

Of or pertaining to pentadecanoic acid or its derivatives.

(organic chemistry, especially in combination) The univalent radical derived from pentadecenoic acid by loss of the hydroxy group