|a scrap or morsel of food left at a meal.|
|a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.|
piperazine pi·per·a·zine (pī-pěr'ə-zēn', pĭ-)
A colorless crystalline compound used as a hardener for epoxy resins, an antihistamine, and an anthelmintic.
|piperazine (pī-pěr'ə-zēn', pĭ-) Pronunciation Key
A colorless crystalline compound used as a hardener for epoxy resins, as an antihistamine, and as an agent for expelling or destroying parasitic intestinal worms. Piperazine belongs to the class of chemicals called pyrazines. Chemical formula: C4H10N2.
anthelmintic drug used in the treatment of intestinal roundworm infection in humans and domestic animals (including poultry) and against pinworm infection in humans. It is administered orally, in repeated doses, usually as the citrate salt. Its action causes worms to be paralyzed and then eliminated in the stool
Learn more about piperazine with a free trial on Britannica.com.