counteract-v; 1 Senses

Sense Number 1: oppose by contrary actions

How do you counteract the effects of hunching over?
Acids like vinegar will counteract bases like lye.
Antioxidents are believed to counteract precancerous cell activity.
Green tea extracts can counteract the modification of fatty acid composition.

VerbNet: NP
FrameNet: NP
PropBank: counteract.01
WordNet 3.0 Sense Numbers: 1, 2, 3, 4