1. Crossed; intersected.
2. (Bot.)
Defn: Growing in pairs, each of which is at right angles to the next pair above or below; as, decussated leaves or branches.
3. (Rhet.)
Defn: Consisting of two rising and two falling clauses, placed in alternate opposition to each other; as, a decussated period.
DECUSSATELY
De*cus"sate*ly, adv.
Defn: In a decussate manner.
DECUSSATION
De`cus*sa"tion, n. Etym: [L. decussatio.]
Defn: Act of crossing at an acute angle, or state of being thus crossed; an intersection in the form of an X; as, the decussation of lines, nerves, etc.
DECUSSATIVE
De*cus"sa*tive, a.