Definition of wave-form:
(v) :
(intransitive) To move back and forth repeatedly and somewhat loosely.
(v) :
(intransitive) To move one's hand back and forth (generally above the shoulders) in greeting or departure.
(v) :
(transitive, metonymic) To call attention to, or give a direction or command to, by a waving motion, as of the hand; to signify by waving; to beckon; to signal; to indicate.
(v) :
(intransitive) To have an undulating or wavy form.
(v) :
(transitive) To raise into inequalities of surface; to give an undulating form or surface to.
(v) :
(transitive) To style (the hair) so as to produce a wavy texture.