Third-person singular simple present indicative form of bust out

A native or inhabitant of Caledonia; a Scot. / Someone from the ancient Celtic tribe (or group of tribes) called Caledonians, in Scotland

(medicine, dermatology) Initialism of alopecia universalis. / (astronomy) Initialism of astronomical unit. / Initialism of angstrom unit. / (fandom slang) Initialism of alternate universe.

plural of ichthulin