(grammar) The auxiliary verb that is combined with a past participle to form a compound perfect tense: in English, the verb have; in French, German, and Danish either the equivalent of have or the ...

Alternative spelling of jellyfish

(organic chemistry) The toxic cyclopentenoid cyanohydrin glucoside (1S,4R)-4-hydroxy-1-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxycyclopent-2-ene-1-carbonitrile present in Pas...

A 19th-century style of finely decorated porcelain.