Semibreve
Pronunciation : Sem"i*breve`
Part of Speech : n.
Etymology : [Pref. semi- + breve: cf. F. semi-breve, It. semibreve.] [Formerly written semibref.] (Mus.)
Definition : Defn: A note of half the time or duration of the breve; -- now usually called a whole note. It is the longest note in general use.
Source : Webster's Unabridged Dictionary, 1913