Defn: A composition consisting of seven lines or verses.
HEPTATEUCH Hep"ta*teuch, n. Etym: [L. heptateuchos, Gr. "epta` seven + heptateuque.]
Defn: The first seven books of the Testament.
HEPTAVALENT
Hep*tav"a*lent, a. Etym: [Hepta- + L. valens, p. pr. See Valence.]
(Chem.)
Defn: Having seven units of attractive force or affinity; — said of heptad elements or radicals.
HEPTENE
Hep"tene, n. Etym: [Gr. "epta` seven.] (Chem.)
Defn: Same as Heptylene.
HEPTINE
Hep"tine, n. Etym: [Heptane + -ine.] (Chem.)
Defn: Any one of a series of unsaturated metameric hydrocarbons,
C7H12, of the acetylene series.
HEPTOIC
Hep*to"ic, a. (Chem.)