/i lay"sheuhn/ , n.
1. the act of inferring.
2. an inference; conclusion.
[ 1525-35; illation- (s. of illatio ) a carrying in, equiv. to L illat ( us ) suppletive ptp. of inferre to bring in, bear in ( il- IL- 1 + latus brought, earlier * tlatus; see TOLERATE) + -ion- -ION ]