Definition of microcracking in US English:

microcracking

noun

Geology Metallurgy
  • The state of having microcracks; the formation of microcracks.

Origin

1950s; earliest use found in Welding Research. From micro- + cracking, after microcrack.

Pronunciation

microcracking

/ˈmʌɪkrə(ʊ)ˌkrakɪŋ/