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Webster 1913 Edition

Corrugate

Cor′ru-gate

(k?r′r?-g?t)
,
Adj.
[L.
corrugatus
, p. p. of
corrugare
;
cor-+ rugare
to wrinkle,
ruga
wrinkle; of uncertain origin.]
Wrinkled; crumpled; furrowed; contracted into ridges and furrows.

Cor′ru-gate

(-g?t)
,
Verb.
T.
[
imp. & p. p.
Corrugated
(-g?ˊt?d)
;
p. pr. & vb. n.
Corrugating
(-g?ˊt?ng)
.]
To form or shape into wrinkles or folds, or alternate ridges and grooves, as by drawing, contraction, pressure, bending, or otherwise; to wrinkle; to purse up;
as, to
corrugate
plates of iron; to
corrugate
the forehead
.
Corrugated iron
,
sheet iron bent into a series of alternate ridges and grooves in parallel lines, giving it greater stiffness.
–
Corrugated paper
,
a thick, coarse paper corrugated in order to give it elasticity. It is used as a wrapping material for fragile articles, as bottles.

Webster 1828 Edition

Corrugate

CORRUGATE

,
Verb.
T.
[L., to wrinkle, in our vulgar language, to ruck, to furrow.] To wrinkle; to draw or contract into folds; as, to corrugate the skin.

CORRUGATE

,
Adj.
Wrinkled.

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