— undulator , n.
v. /un"jeuh layt', un"dyeuh-, -deuh-/ ; adj. /un"jeuh lit, -layt', un"dyeuh-, -deuh-/ , v. , undulated, undulating , adj.
v.i.
1. to move with a sinuous or wavelike motion; display a smooth rising-and-falling or side-to-side alternation of movement: The flag undulates in the breeze.
2. to have a wavy form or surface; bend with successive curves in alternate directions.
3. (of a sound) to rise and fall in pitch: the wail of a siren undulating in the distance.
v.t.
4. to cause to move in waves.
5. to give a wavy form to.
adj.
6. Also, undulated . having a wavelike or rippled form, surface, edge, etc.; wavy.
[ 1650-60; undulatus waved, equiv. to und ( a ) wave + -ul ( a ) -ULE + -atus -ATE 1 ]