principaleffect
nounUK /ˈprɪnsəpəl ɪˈfekt/
US /ˈprɪnsəpəl ɪˈfekt/
The main thing that happens because of something else.
The principal effect of the rain was that the game was canceled.
RELATED WORDS
OTHER MEANINGS
2. The most important result of a medicine or treatment.
The principal effect of the medicine was to lower her fever.
3. The biggest change seen after an event or action.
The principal effect of the new road was less traffic in town.
4. The main way something influences a situation.
The principal effect of the law was safer streets for children.