I. (ˈ)ant.| ̷ ̷ ̷ ̷, (ˈ)aan-, (ˈ)ain- adjective
also an·ti·ac·id | ̷ ̷ˌtī| ̷ ̷ ̷ ̷, -_tē-, -_tə-
Etymology: anti- (I) + acid
: counteractive of acidity
II. noun
also antiacid “
( -s )
: an agent that counteracts or neutralizes acidity (as an alkali or absorbent)