(biology) The principle that states that two species who are very similar, and compete for the same resources, cannot coexist indefinitely, as the one with the slight advantage will outperform the other and eventually drive it into extinction.

plural of competitive exclusion

(US, law, uncountable) The legal requirement that under specified circumstances, a juvenile be tried as an adult, without the possibility of judicial discretion.

plural of statutory exclusion

plural of exclusive right

plural of exclusive or

plural of exclusion zone

(logic) A disjunction which is true if only one, but not both, of its disjuncts is true.

plural of exclusive disjunction

plural of exclusive-or