(topology) A space obtained from another by identification of points that are equivalent to one another in some equivalence relation.

plural of identification space

(dated) A star of movies, often male, who is adored by his many fans; used primarily in the 1940s-1960s.

(law) Abbreviation of United States District Court for the District of Idaho, as used in case citations.

A component on a SIM card that stores information to identify a mobile phone user.

plural of Subscriber Identity Module

plural of idiot box

(algebra) An ideal I in an algebraic object R (which could be a ring, algebra, semigroup or lattice) that is generated by a given single element a ∈ R; the smallest ideal that contains a.

(algebra) A subring which is closed under left-multiplication by any element of the ring.

(algebra) A subring which is closed under right-multiplication by any element of the ring.