▪ I. corrugate, ppl. a.
(ˈkɒr(j)uːgət)
[ad. L. corrūgāt -us, pa. pple. of corrūgāre: see next.]
Wrinkled; contracted into folds or wrinkles. Also fig.
| 1742 Young Nt. Th. ix. 1382 Extended views a narrow mind extend; Push out its corrugate, expansive make. 1840 New Monthly Mag. LVIII. 458 Howard..with corrugate brow now consigned Parolles to the ‘shelf’. |
b. spec. in Bot. and Zool. Having a wrinkled appearance; marked with parallel ridges and furrows, usually wavy or curved.
| 1826 Kirby & Sp. Entom. (1828) IV. xxxviii. 38 The surface frequently appears to be corrugate or plaited. 1880 Gray Struct. Bot. iv. §2. 133 Corrugate or Crumpled, as the petals of a Poppy, applies to the irregular crumpling of the otherwise plane corolla-leaves. |
▪ II. corrugate, v.
(ˈkɒr(j)uːgeɪt)
[f. L. corrūgāt-, ppl. stem of corrūgāre to wrinkle, f. cor- (com-) intensive + rūgāre to wrinkle f. rūga wrinkle.]
trans. To wrinkle (the skin), contract into wrinkles; hence gen. to draw, contract, or bend into parallel folds or ridges; to mark with ridges and furrows.
| 1620 Venner Via Recta (1650) 129 Salt exciteth the appetite by corrugating the mouth of the stomach. 1626 Bacon Sylva §964 Cold and Drinesse do (both of them) Contract and Corrugate. 1676 Phil. Trans. XI. 676 To soften and smooth..the Sinuosities of the stomach..that had by long abstinence been much corrugated. 1718 Quincy Compl. Disp. 95 Whatsoever..acts as a Stimulus, and crisps and corrugates the Fibres. 1786 tr. Beckford's Vathek (1834) 97 The haughty forehead of the intrepid princess became corrugated with agony. 1839 Todd Cycl. Anat. II. 222 b, It [the muscle] corrugates the skin of the nose transversely. 1880 Haughton Phys. Geogr. ii. 50 Tangential thrusts, which corrugate and wrinkle its surface into mountain chains and deep-sea-valleys. |
b. intr. (for refl.) = To become corrugated.
| 1753 N. Torriano Gangr. Sore Throat p. xiv, Whether the Matter corrugates, or impostumates. 1853 Kane Grinnell Exp. xvi. 122 The elastic material corrugated before the enormous pressure. |
Hence ˈcorrugating vbl. n. corrugating machine, a machine for making corrugated iron.
| 1874 in Knight Dict. Mech. |