Definition of decima:
(n) :
(Roman mythology) One of the three Fates, or Parcae, daughter of Jupiter and Justitia; the measurer of the thread of life. She is the Roman equivalent of Lachesis.
(n) :
(poetry) A 10-line verse or stanza, (chiefly) in the form of a song comprising an introductory verse followed by four such divisions.
(n) :
(music) An organ stop a tenth above the normal 8-foot pitch.
(n) :
A tithe or tax of one-tenth (now usually in historical Italian contexts).
(n) :
(generally obsolete) A tenth, particularly
(n) :
(obsolete, music) A tenth: a note nine degrees of the scale above or below a given note (and thus ten degrees separate counting inclusively) or the interval between such notes.