Definify.com
Webster 1913 Edition
Waterproof
Wa′ter-proofˊ
,Adj.
Proof against penetration or permeation by water; impervious to water;
as, a
. waterproof
garment; a waterproof
roofWa′ter-proofˊ
,Noun.
1.
A substance or preparation for rendering cloth, leather, etc., impervious to water.
2.
Cloth made waterproof, or any article made of such cloth, or of other waterproof material, as rubber; esp., an outer garment made of such material.
Wa′ter-proofˊ
,Verb.
T.
To render impervious to water, as cloth, leather, etc.