As nouns the difference between wrinkling and fishmouth
is that wrinkling is a pattern of wrinkles while fishmouth is (roofing) a half-cylindrical or half-conical shaped opening or void in a lapped edge or seam, usually caused by wrinkling or shifting of ply sheets during installation.
As a verb wrinkling
is .
wrinkling
English
Verb
(head)
Noun
(
en noun)
A pattern of wrinkles.
* 1849 , Journal of the Royal Geological Society of Ireland (volume 3, page 251)
- The character of these wrinklings , when seen on the flat of the beds, forbids the idea that they are due to end on compression
fishmouth
English
Noun
(
en noun)
(roofing) a half-cylindrical or half-conical shaped opening or void in a lapped edge or seam, usually caused by wrinkling or shifting of ply sheets during installation.