(Internet) One who takes over a discussion thread with a subject unrelated to the original posting.

(mineralogy) A monoclinic-prismatic greenish yellow mineral containing aluminum, hydrogen, oxygen, phosphorus, and uranium.

(archaic) Made or woven of thread; textile.

Having a cross section in the form of an equilateral triangle; said especially of a kind of file.

(literally) To extract or remove by threshing. / (figuratively) To thrash out.

A cutlassfish (Trichiuridae). / Any of the genus Alectis of fish, noted for their filamentous anal and dorsal fins.

plural of threadfish

plural of three-quarter brother

(horse breeding) The offspring of a horse's sire/dam that is by/out of a sibling of its other parent. / (horse breeding) The offspring of a horse's dam and a son of its sire.

plural of three-quarter sibling