Defn: Having the valence of a pentad.
PENTADACTYL; PENTADACTYLE
Pen`ta*dac"tyl, Pen`ta*dac"tyle, a. Etym: [Gr. Penta-, and Dactyl.]
1. (Anat.)
Defn: Having five digits to the hand or foot.
2. Having five appendages resembling fingers or toes.
PENTADACTYLOID
Pen`ta*dac"tyl*oid, a. Etym: [Pentadactyl + -oid.] (Anat.)
Defn: Having the form of, or a structure modified from, a pentadactyl limb.
PENTADECANE
Pen`ta*dec"ane, n. Etym: [Penta- + Gr. (Chem.)
Defn: 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.
PENTADECATOIC
Pen`ta*dec`a*to"ic, a. Etym: [Penta- + decatoic.] (Chem.)