impf & ·p.p. of undulate.
2. undulated ·adj waved obtusely up and down, near the margin, as a leaf or corolla; wavy.
3. undulated ·adj resembling, or in the nature of, waves; having a wavy surface; undulatory.
4. undulated ·adj formed with elevations and depressions resembling waves; having wavelike color markings; as, an undulated shell.