Hair checking | Article about hair checking by The Free Dictionary
hairline cracking, hair cracking, plastic shrink-age cracks
Very fine cracks, in a random pattern, which usually do not completely penetrate a paint film, an exposed layer of concrete, etc.
References in periodicals archive
On the other hand, there was statistical significance differences regarding the relationship between prevalence of head lice and checking frequency of head lice, and methods used for hair checking