pyramidon

Etymology 1
From + -on (after,  etc.).

Noun

 * 1)  An organ stop having wooden pipes in the form of an inverted pyramid, giving very deep notes somewhat like those of a stopped diapason.

Etymology 2
From, corresponding to +.

Noun

 * 1)  A yellowish-white powder used as an antipyretic.

Synonyms

 * dimethylamidophenyldimethylpyrazolon

Noun

 * 1)  pyramidon