id^*ɪd(n.)

1. the part of the psyche that is the source of unconscious and instinctive impulses that seek satisfaction in accordance with the pleasure principle.

   Category: Psychology

   Ref: Compare ego (def. 2) 2 , superego

^* Psychoanal..

Origin of id:

1924; < L id it, as a trans. of G Es lit., it

ID

ID

1. Also, Id. Idaho.

   Category: Geography (places)

2. Also, i.d. inside diameter.

3. (Iraq) dinar.

   Category: Numismatics

I'daɪd

1. contraction of I would or

   I had.

   Category: Usage Note

-id

1. a suffix of nouns that have the general sense “offspring of, descendant of,” occurring orig. 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; Fatimid), and in names of periodic meteor showers, with the base noun usu. denoting the constellation or other celestial object in which the shower appears (Perseid).

   Category: Affix

Origin of -id:

< L -id-, s. of -is < Gk

-id

1. a suffix occurring in English derivatives of modern Latin taxonomic names, esp. zoological families and classes; such derivatives are usu. nouns denoting a single member of the taxon or adjectives with the sense “pertaining to” the taxon:

   arachnid; canid.

   Category: Affix

Origin of -id:

< Gk -idēs

-id

1. lipid.

   Category: Affix

   Ref: var. of -ide

-id

1. a suffix occurring in descriptive adjectives borrowed from Latin, often corresponding to nouns ending in -or1:

   humid; pallid.

   Category: Affix

Origin of -id:

< L -idus

id.

1. idem.

I.D.

1. identification.

2. identity.

3. Intelligence Department.

   Category: Government