A spring, made of a coil of fine wire, that is used to regulate the movement of a balance wheel in a watch.

The characteristic of being hairy. / (technical) A characteristic of yarn: the proportion of fibre ends that stick out and are not embedded in the yarn body.

A stickler person who makes extremely, possibly excessively, fine distinctions (who would separate something as fine as a hair into two pieces and distinguish them).

The act of considering or arguing about fine details, or worrying about minutiae.

present participle of hairsplit

A nocturnal lemur, Allocebus trichotis.

A haircut carried out by placing a pudding basin over the head and cutting around the base; or, one that looks as if it were so carried out.

A dog of a particular breed. / A cat of a particular breed.

A dog of a particular breed. / A cat of a particular breed.

plural of hairbrush