单词 | rugate |
释义 | rugate/ˈruːɡeɪt/adjective 1 Botany and Zoology. Characterized by wrinkles or ridges; wrinkled. 2 Optics. Of a filter, coating, etc.: having a refractive index which varies smoothly in a regular, typically sinusoidal, manner with depth.
OriginMid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From classical Latin rūgātus having a wrinkled surface from rūga + -ātus. |
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