follow Dictionary.com

9 Q Without U Words for Words With Friends

decay

[dih-key] /dɪˈkeɪ/
verb (used without object)
1.
to become decomposed; rot:
vegetation that was decaying.
2.
to decline in excellence, prosperity, health, etc.; deteriorate.
3.
Physics. (of a radioactive nucleus) to change spontaneously into one or more different nuclei in a process in which atomic particles, as alpha particles, are emitted from the nucleus, electrons are captured or lost, or fission takes place.
verb (used with object)
4.
to cause to decay or decompose; rot:
The dampness of the climate decayed the books.
noun
5.
decomposition; rot:
Decay made the wood unsuitable for use.
6.
a gradual falling into an inferior condition; progressive decline:
the decay of international relations; the decay of the Aztec civilizations.
7.
decline in or loss of strength, health, intellect, etc.:
His mental decay is distressing.
8.
Also called disintegration, radioactive decay. Physics. a radioactive process in which a nucleus undergoes spontaneous transformation into one or more different nuclei and simultaneously emits radiation, loses electrons, or undergoes fission.
9.
Aerospace. the progressive, accelerating reduction in orbital parameters, particularly apogee and perigee, of a spacecraft due to atmospheric drag.
Origin
late Middle English
1425-1475
1425-75; (v.) late Middle English decayen < Old North French decair, equivalent to de- de- + cair to fall < Vulgar Latin *cadēre, for Latin cadere; (noun) late Middle English, derivative of the v.
Related forms
decayable, adjective
decayedness
[dih-keyd-nis, -key-id-] /dɪˈkeɪd nɪs, -ˈkeɪ ɪd-/ (Show IPA),
adjective
decayless, adjective
nondecayed, adjective
nondecaying, adjective
redecay, verb
semidecay, noun
semidecayed, adjective
undecayable, adjective
undecayed, adjective
undecaying, adjective
Synonyms
1. degenerate, wither; putrefy. Decay, decompose, disintegrate, rot imply a deterioration or falling away from a sound condition. Decay implies either entire or partial deterioration by progressive natural changes: Teeth decay. Decompose suggests the reducing of a substance to its component elements: Moisture makes some chemical compounds decompose. Disintegrate emphasizes the breaking up, going to pieces, or wearing away of anything, so that its original wholeness is impaired: Rocks disintegrate. Rot is a stronger word than decay and is especially applied to decaying vegetable matter, which may or may not emit offensive odors: Potatoes rot. 5. putrefaction. 7. deterioration, decadence, impairment, dilapidation, degeneration.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for decayed
  • Some poles were taken to museums, while others decayed or were destroyed.
  • Of course, they may have used sophisticated wood or bamboo tools that have decayed.
  • Investment in the region as an oil and gas producer and aid to rebuild its decayed ports might help in theory.
  • Over time these wooden posts decayed, leaving deep indentations in a circular pattern.
  • The actual tissue has decayed over the millennia, and has been replaced by minerals.
  • Most corpses decayed normally, leaving bare bones as the only proof of lives extinguished.
  • Fission in the uranium created a smaller deposit of plutonium, which decayed back into uranium.
  • Now decayed and shaky, its tall shabby rooms and its long windows with their newly replaced panes had a certain grandeur.
  • Flesh and muscle decayed, leaving for later archaeological study hollowed-out molds of rock.
  • decayed teeth are filled with dental amalgam, dental composite, or dental porcelain.
British Dictionary definitions for decayed

decay

/dɪˈkeɪ/
verb
1.
to decline or cause to decline gradually in health, prosperity, excellence, etc; deteriorate; waste away
2.
to rot or cause to rot as a result of bacterial, fungal, or chemical action; decompose
3.
(intransitive) (physics) Also disintegrate
  1. (of an atomic nucleus) to undergo radioactive disintegration
  2. (of an elementary particle) to transform into two or more different elementary particles
4.
(intransitive) (physics) (of a stored charge, magnetic flux, etc) to decrease gradually when the source of energy has been removed
noun
5.
the process of decline, as in health, mentality, beauty, etc
6.
the state brought about by this process
7.
decomposition, as of vegetable matter
8.
rotten or decayed matter: the dentist drilled out the decay
9.
(physics)
  1. See radioactive decay
  2. a spontaneous transformation of an elementary particle into two or more different particles
  3. of an excited atom or molecule, losing energy by the spontaneous emission of photons
10.
(physics) a gradual decrease of a stored charge, magnetic flux, current, etc, when the source of energy has been removed See also time constant
11.
(music) the fading away of a note
Derived Forms
decayable, adjective
Word Origin
C15: from Old Northern French decaïr, from Late Latin dēcadere, literally: to fall away, from Latin cadere to fall
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
Cite This Source
Word Origin and History for decayed

decay

v.

late 15c., "to decrease," from Anglo-French decair, Old North French decair (Old French decheoir, 12c., Modern French déchoir) "to fall, set (of the sun), weaken, decline, decay," from Vulgar Latin *decadere "to fall off," from de- (see de-) + Latin cadere "to fall" (see case (n.1)). Meaning "decline, deteriorate" is c.1500; that of "to decompose, rot" is from 1570s. Related: Decayed; decaying.

n.

mid-15c., "deterioration, decline in value," from decay (v.). Meaning "gradual decrease in radioactivity" is from 1897.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
decayed in Medicine

decay de·cay (dĭ-kā')
n.

  1. The destruction or decomposition of organic matter as a result of bacterial or fungal action; rot.

  2. Dental caries.

  3. The loss of information that was registered by the senses and processed into the short-term memory system.

  4. Radioactive decay.

v. de·cayed, de·cay·ing, de·cays
  1. To break down into component parts; rot.

  2. To disintegrate or diminish by radioactive decay.

  3. To decline in health or vigor; waste away.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
decayed in Science
decay
  (dĭ-kā')   
Noun  
  1. The breaking down or rotting of organic matter through the action of bacteria, fungi, or other organisms; decomposition.

  2. The spontaneous transformation of a relatively unstable particle into a set of new particles. For example, a pion decays spontaneously into a muon and an antineutrino. The decay of heavy or unstable atomic nuclei (such as uranium or carbon-10) into more stable nuclei and emitted particles is called radioactive decay. The study of particle decay is fundamental to subatomic physics. See more at fundamental force, radioactive decay.


Verb  To undergo decay.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for decay

All English speakers likely know this word

Word Value for decayed

14
14
Scrabble Words With Friends

Quotes with decayed

Nearby words for decayed