Definition of crenulation in English:

crenulation

Pronunciation /ˌkrenyəˈlāSHən/

noun

technical

See crenulate

‘This elevated structure extends ventrally in order to produce the marginal crenulations in the ventral part of the shell.’
  • ‘The crenulations are either dorsally open or represent filled structures.’
  • ‘The enamel in the synclines shows crenulations.’
  • ‘Some species possess only crenulated growth lines, while in others there is a very strong crenulation, causing a spiral ornament.’
  • ‘Sporadically developed crenulation occurs on some foliation surfaces as small patches of closely spaced wrinkles.’