(linguistics) An existing acronym which has been redefined as a nonacronymous name, severing its link to its previous meaning.

(computing) A computer-human interaction in which either the computer or the human can take initiative and decide what to do next.

A ritual during which an initiate is admitted to an organization or given secret knowledge; sometimes contains one or more tests that have to be passed or endured

(genetics) A codon that signals the first amino acid to be used in the synthesis of the polypeptide chain of a protein; either AUG or GUG

A measure put directly to a vote after being submitted by a petition.

(ecology) lay date. This has relevance to avian breeding habits.

In surveying, the point where the principal meridian crosses the baseline.

(category theory) An object within a category which sends out arrows to all other objects in that category, and such that each of these arrows is unique.

plural of clutch initiation

plural of initial point