(bibliography) Abbreviation of idem. Used in citations to state that the citation is found in the same work as the one previously cited.

Alternative spelling of ide (the fish)

(computing) Identifier.

Used in citations to state that the citation is to the work immediately previously cited.

The unconscious impulsive component of the personality in the Freudian psychoanalytic model.

(botany) Forming nouns from Latin or Greek roots, including certain plant names modelled on Latin sources. / (astronomy) Forming common names of meteors from their apparent constellation of origin.

(not productive except in zoology) of or pertaining to; appended to various foreign words to make an English adjective or noun form. Often added to words of Greek, sometimes Latin, origin.

(historical, often capitalized) The notional full-moon day of a Roman month, occurring on the 15th day of the four original 31-day months (March, May, Quintilis or July, and October) and on the 13th day of all other months.

plural of ide

(UK politics) Initialism of Iain Duncan Smith.