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ed

[ed]
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noun Informal.
  1. education: a course in driver's ed; adult ed.

Origin of ed

by shortening

Ed

[ed]
noun
  1. a male given name, form of Edgar or Edward.

ED

  1. Department of Education.
  2. Pathology. erectile dysfunction.

ed.

  1. edited.
  2. plural eds. edition.
  3. plural eds. editor.
  4. education.

ED50

Pharmacology.
  1. effective dose for 50 percent of the group; the amount of a drug that is therapeutic in 50 percent of the persons or animals in which it is tested.

-ed1

  1. a suffix forming the past tense of weak verbs: he crossed the river.

Origin of -ed1

Old English -de, -ede, -ode, -ade; orig. disputed

-ed2

  1. a suffix forming the past participle of weak verbs (he had crossed the river), and of participial adjectives indicating a condition or quality resulting from the action of the verb (inflated balloons).

Origin of -ed2

Old English -ed, -od, -ad; orig. disputed

-ed3

  1. a suffix forming adjectives from nouns: bearded; monied; tender-hearted.

Origin of -ed3

Middle English; Old English -ede

E.D.

  1. Eastern Department.
  2. election district.
  3. ex dividend.
  4. executive director.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for ed

Contemporary Examples

Historical Examples

  • Dr. Ed was out "on a case" and might not be in until evening.

    K

    Mary Roberts Rinehart

  • Dr. Ed stood by and waited while his brother got into his street clothes.

    K

    Mary Roberts Rinehart

  • A roast of beef meant a visit, in Dr. Ed's modest-paying clientele.

    K

    Mary Roberts Rinehart

  • He had noticed that her lips were rather blue, and had called in Dr. Ed.

    K

    Mary Roberts Rinehart

  • Nevertheless, there was no anger in Dr. Ed's mind, only a vague and inarticulate regret.

    K

    Mary Roberts Rinehart


British Dictionary definitions for ed

ed.

abbreviation for
  1. edited
  2. plural eds edition
  3. plural eds editor

-ed1

suffix
  1. forming the past tense of most English verbs

Word Origin

Old English -de, -ede, -ode, -ade

-ed2

suffix
  1. forming the past participle of most English verbs

Word Origin

Old English -ed, -od, -ad

-ed3

suffix forming adjectives
  1. possessing or having the characteristics ofsalaried; red-blooded

Word Origin

Old English -ede
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ed

-ed

past participle suffix of weak verbs, from Old English -ed, -ad. --od (leveled to -ed in Middle English), from Proto-Germanic *-do- (cf. Old High German -ta, German -t, Old Norse -þa, Gothic -da, -þs), from PIE *-to- (cf. Sanskrit -tah, Greek -tos, Latin -tus).

Originally fully pronounced, as still in beloved (which, with blessed, accursed, and a few others retains the full pronunciation through liturgical readings). In 16c.-18c. often written -t when so pronounced (usually after a consonant or short vowel), and still so where a long vowel in the stem is short in the pp. (e.g. crept, slept, etc.). In some older words both forms exist, with different shades of meaning, e.g. gilded/gilt, burned/burnt.

Online Etymology Dictionary, © 2010 Douglas Harper

ed in Medicine

ED

abbr.
  1. effective dose
  2. erectile dysfunction
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.