A toilet used while sitting, as opposed to squatting, such as a flush toilet.

microscopic invasion

(nautical) An opening above the waterline of a boat, ship, or other vessel through which water or other liquid can enter if the vessel rolls to an excessive angle or rides lower than normally.

(organic chemistry) A macrolide, methyl (2R,4S,6R,12S)-4-methyl-8-oxo-12-prop-1-en-2-yl-3,7,17-trioxatetracyclo[12.2.1.16,9.02,4]octadeca-1(16),9(18),14-triene-15-carboxylate, present in the soft c...