idem
plural ID's or IDs
: a document (such as a card) bearing identifying information about and often a photograph of the individual whose name appears on it
called also ID card, identification card, identity card
1
Idaho
2
identification
3
independent distributor
4
industrial design
5
often not capitalized
inside diameter; inner diameter; internal diameter
6
often not capitalized
inside dimensions
7
intellectual disability; intellectually disabled
8
intelligence department
1
: one belonging to a (specified) dynastic line
Abbasid
2
: meteor associated with or radiating from a (specified) constellation or comet
Perseid
: body : particle
chromatid
Examples of id in a Sentence
Verb
The police have not yet ID'd the victim.
studies that show that eyewitnesses are surprisingly unreliable when called upon to ID the perpetrators of crimes
Recent Examples on the Web
Andrew J. Campa, Los Angeles Times, 13 Apr. 2025
Delays in processing can cost you, so visit your state’s unemployment website with your ID and pay stubs ready.
—Jack Kelly, Forbes.com, 13 Apr. 2025
Tina Reed, Axios, 25 Sep. 2024
See All Example Sentences for id
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Noun
More big stories California DMV opens early for those needing a Real ID before the May 7 deadline.
—Andrew J. Campa, Los Angeles Times, 13 Apr. 2025
Delays in processing can cost you, so visit your state’s unemployment website with your ID and pay stubs ready.
—Jack Kelly, Forbes.com, 13 Apr. 2025
Verb
Between the lines: There are other tools on the market that ID drugs that can be repurposed.
—Tina Reed, Axios, 25 Sep. 2024
See All Example Sentences for id
Cite this Entry
“Id.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/id. Accessed 18 Apr. 2025.
Copy CitationMedical Definition
id
2 of 4 noun
: a skin rash that is an allergic reaction to an agent causing an infection
a syphilitic id
tinea pedis and the vesicular ids arising from it—The Journal of the American Medical Association
compare bacterid
The Journal of the American Medical Associationid
3 of 4 abbreviation
the same
ID
4 of 4 abbreviation1
identification
2
inside diameter; internal diameter
3
intellectual disability; intellectually disabled
4
intradermal
Etymology
Abbreviation
Latin idem
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