Pronunciation: (id),[key] —n.Psychoanal. the part of the psyche, residing in the unconscious, that is the source of instinctive impulses that seek satisfaction in accordance with the pleasure principle and are modified by the ego and the superego before they are given overt expression.
Pronunciation: (ī'dē'),[key] —n., —pl.ID's or IDs, —v.,ID'd or IDed or ID'ed, ID'ing or ID•ing. a means of identification, as a card or bracelet containing official or approved identification information.
—v.t. 1. to identify.
2. to issue an ID to: Go to the admissions office if you haven't been ID'd yet.
1. Idaho (approved esp. for use with zip code).
2. Also,i.d.inside diameter.
Pronunciation: (īd),[key] contraction of I would or I had.
a suffix of nouns that have the general sense “offspring of, descendant of,” occurring originally in loanwords from Greek (Atreid; Nereid), and productive in English on the Greek model, esp. in names of dynasties, with the dynasty's founder as the base noun (Abbasid; Attalid), and in names of periodic meteor showers, with the base noun usually denoting the constellation or other celestial object in which the shower appears (Perseid).
a suffix occurring in English derivatives of modern Latin taxonomic names, esp. zoological families and classes; such derivatives are usually nouns denoting a single member of the taxon or adjectives with the sense “pertaining to” the taxon: arachnid; canid.
var. of -ide:lipid.
a suffix occurring in descriptive adjectives borrowed from Latin, often corresponding to nouns ending in -or1:fetid; humid; pallid.