pyramidon1
/pɪˈramɪd(ə)n/rare. Now historical
noun
A pedal organ stop consisting of wooden pipes in the shape of an inverted pyramid.
Origin
Late 19th century; earliest use found in John Hiles (1810–1882). From pyramid + -on.
pyramidon2
/pɪˈramɪdɒn/ /pɪˈramɪdəʊn/(also pyramidone) Pharmacology
noun
An analgesic and antipyretic drug that is structurally related to antipyrin.
- Chemical name: 4-(dimethylamino)-1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one, C13H17N3O..
Origin
Late 19th century; earliest use found in Journal of the Chemical Society. From German Pyramidon from pyr- (in Pyrazolon) + amido- + -on.