波状的

Undulate \Un"du*late\, v. t. [imp. & p. p. {Undulated}; p. pr. &
vb. n. {Undulating}.]
To cause to move backward and forward, or up and down, in
undulations or waves; to cause to vibrate.

Breath vocalized, that is, vibrated and undulated.
--Holder.


Undulating \Un"du*la`ting\, a.
Rising and falling like waves; resembling wave form or
motion; undulatory; rolling; wavy; as, an undulating medium;
undulating ground. -- {Un"du*la`ting*ly}. adv.