Definition of cleaves:
(n) :
(music) A characteristic pattern of beats, especially the 3-2 son clave.
(n) :
Ellipsis of autoclave. [A strong, pressurized, heated vessel, as for laboratory experiments, sterilization, cooking or mineral processing.]
(v) :
Ellipsis of autoclave. [(transitive) To sterilize laboratory equipment in an autoclave.]