单词	undulate
释义	un·du·late (ŭnjə-lāt′, ŭndyə-, -də-) v. un·du·lat·ed, un·du·lat·ing, un·du·lates v.intr. 1. To move in waves or with a smooth, wavelike motion: "gleaming seaweed that curls and undulates with the tide" (Willa Cather). 2. To have a wavelike appearance or form: dunes that undulate toward the sea. 3. To increase and decrease in volume or pitch. v.tr. 1. To cause to move in a smooth wavelike motion: The dancer undulated her hips. 2. To give a wavelike appearance or form to: The rock strata are undulated. adj. (-lĭt, -lāt′) Having a wavy outline or appearance: leaves with undulate margins. [From Late Latin undula, small wave, diminutive of Latin unda, wave; see wed-1 in the Appendix of Indo-European roots.] undu·la·to′ry (-lə-tôr′ē) adj. undulate undulate leaf
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