Undulated \Un"du*la`ted\, a.

1. Resembling, or in the nature of, waves; having a wavy surface; undulatory.

2. (Bot.) Waved obtusely up and down, near the margin, as a leaf or corolla; wavy.

3. (Zo["o]l.) Formed with elevations and depressions resembling waves; having wavelike color markings; as, an undulated shell.

Source: Webster's Revised Unabridged Dictionary (1913)
 

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.

Source: Webster's Revised Unabridged Dictionary (1913)