The strange, the bizarre and the unexpected

[BoggleOtaku]

I found as obsolete spelling of deraign; maybe this definition was unintendedly left out of lexic.

[Nylimb]

Thanks, BoggleOtaku. That sounds plausible. The Oxford English Dictionary lists that meaning, and also an obsolete use from the 1500s where it meant "To rain down, fall as rain.": https://www.oed.com/search/dictionary/?q=derain

[Somervillain]

Apparently something can be RADIOSTERILIZED, but one cannot RADIOSTERILIZE it.

[DrPlacebo]

Unexpected compound word: got points for AIRSTONE and AIRSTONES.

Noun. A piece of aquarium furniture, traditionally limewood or porous stone, whose purpose is to diffuse oxygen gradually into the tank, eliminating the noise and large bubbles of conventional air filtration systems.

[BoggleOtaku]

Thought it would be a gallant effort, but now in a bit of disbelief at CIRCUMCIRCLES. Somehow I got through a geometry-laden career without encounter this word and instead saying things like circumscribed triangle. Am I the only one?