Webster's 1828 Dictionary
EVACUANT
a.[L. evacuans.] Emptying; freeing from.
EVACUANT
n.A medicine which procures evacuations, or promotes the natural secretions and excretions.
Webster's 1913 Dictionary
EVACUANT
E *vac "u *ant, a. Etym: [L.evacuans, -antis, p. pr. of evacuare: cf. F.évacuant.]
Defn: Emptying; evacuative; purgative; cathartic. -- n. (Med. )
Defn: A purgative or cathartic.
New American Oxford Dictionary
evacuant
e vac u ant |iˈvakyo͞oənt əˈvækjəwənt | ▶noun a medicine that induces some kind of bodily discharge, such as an emetic, a sudorific, or esp. a laxative. ▶adjective (of a medicine or treatment ) acting to induce some kind of bodily discharge. ORIGIN mid 18th cent.: from Latin evacuant- ‘emptying (the bowels ),’ from the verb evacuare, later in the more general sense ‘remove (contents ).’
Oxford Dictionary
evacuant
evacuant |ɪˈvakjʊənt | ▶adjective (of a medicine or treatment ) acting to induce some kind of bodily discharge. ▶noun an evacuant medicine, such as a laxative, an emetic, or a sudorific. ORIGIN mid 18th cent.: from Latin evacuant- ‘emptying (the bowels ’), from the verb evacuare, later in the more general sense ‘remove (contents )’.
The Wordsmith Dictionary