coaction 1
/koh ak"sheuhn/ , n.
force or compulsion, either in restraining or in impelling.
[ 1350-1400; ME coaction- (s. of coactio ), equiv. to coact ( us ) (ptp. of cogere; see COGENT, CO-, ACT) + -ion- -ION ]
coaction 2
/koh ak"sheuhn/ , n.
1. joint action.
2. Ecol. any interaction among organisms within a community.
[ 1615-25; CO- + ACTION ]