Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary


noun sat·u·ra·tion \ˌsa-chə-ˈrā-shən\

Simple Definition of saturation

  • : the act or result of making something very wet

  • : the act or result of supplying so much of something that no more is wanted

  • : the act of using military force over a whole area

Source: Merriam-Webster's Learner's Dictionary

Full Definition of saturation

  1. 1a :  the act of saturating :  the state of being saturatedb :  satiety, surfeit

  2. 2 :  conversion of an unsaturated to a saturated chemical compound (as by hydrogenation)

  3. 3 :  a state of maximum impregnation: asa :  complete infiltration :  permeationb :  the presence in air of the most water possible under existent pressure and temperaturec :  magnetization to the point beyond which a further increase in the intensity of the magnetizing force will produce no further magnetization

  4. 4a :  chromatic purity :  freedom from dilution with whiteb (1) :  degree of difference from the gray having the same lightness —used of an object color (2) :  degree of difference from the achromatic light-source color of the same brightness —used of a light-source color — compare hue 2c

  5. 5 :  the supplying of a market with as much of a product as it will absorb

  6. 6 :  an overwhelming concentration of military forces or firepower

Examples of saturation in a sentence

  1. Heavy rains resulted in the saturation of the soil.

  2. the saturation of advertising on television

Circa 1554

First Known Use of saturation

circa 1554

Other Chemical Engineering Terms

Rhymes with saturation

abdication, aberration, abjuration, abnegation, abrogation, acceptation, acclamation, accusation, activation, adaptation, adjuration, admiration, adoration, adulation, adumbration, affectation, affirmation, aggravation, aggregation, agitation, allegation, allocation, amputation, alteration, altercation, animation, annexation, annotation, appellation, application, approbation, arbitration, arrogation, aspiration, assignation, attestation, augmentation, automation, aviation, avocation, blaxploitation, botheration, calculation, calibration, cancellation, carbonation, castigation, celebration, cerebration, chlorination, circulation, cogitation, collocation, coloration, combination, comfort station, commendation, commutation, compensation, complication, computation, concentration, condemnation, condensation, confirmation, confiscation, conflagration, conformation, confrontation, congregation, conjugation, connotation, consecration, conservation, consolation, constellation, consternation, constipation, consultation, consummation, contemplation, conurbation, conversation, convocation, copulation, coronation, corporation, correlation, corrugation, crenellation, crop rotation, culmination, cultivation, cumulation, cybernation, decimation, declamation, declaration, declination, decoration, dedication, defamation, defecation, deformation, degradation, dehydration, delectation, delegation, demarcation, demonstration, denigration, denotation, depilation, deportation, depravation, depredation, deputation, derivation, derogation, desecration, designation, desolation, desperation, destination, detestation, detonation, devastation, deviation, dislocation, dispensation, disputation, dissertation, dissipation, distillation, divination, domination, education, elevation, elongation, emanation, embarkation, embrocation, emendation, emigration, emulation, enervation, escalation, estimation, evocation, exaltation, excavation, excitation, exclamation, exculpation, execration, exhalation, exhortation, exhumation, expectation, expiation, expiration, explanation, explication, exploitation, exploration, exportation, expurgation, extirpation, exultation, fabrication, fascination, federation, fenestration, fermentation, fibrillation, figuration, filling station, fire station, flagellation, fluoridation, fluctuation, forestation, formulation, fornication, fragmentation, fulmination, fumigation, gene mutation, generation, germination, glaciation, graduation, granulation, gravitation, habitation, hesitation, hibernation, hyphenation, ideation, imitation, immigration, immolation, implantation, implication, importation, imprecation, imputation, incantation, incarnation, inclination, incrustation, incubation, indentation, indication, indignation, infestation, infiltration, inflammation, information, inhalation, innovation, inspiration, installation, instigation, insulation, integration, intimation, intonation, inundation, invitation, invocation, irrigation, irritation, iteration, jubilation, laceration, lamentation, lamination, legislation, levitation, liberation, limitation, lineation, liquidation, litigation, lubrication, lucubration, maceration, machination, malformation, masturbation, maturation, mediation, medication, meditation, melioration, menstruation, ministration, mitigation, moderation, modulation, molestation, motivation, mutilation, navigation, nomination, obfuscation, objurgation, obligation, observation, occupation, operation, orchestration, ordination, oscillation, osculation, ostentation, ovulation, oxidation, pagination, palpitation, penetration, percolation, perforation, permeation, permutation, perpetration, perspiration, perturbation, pigmentation, pixilation, police station, pollination, population, postulation, power station, predication, preparation, presentation, preservation, proclamation, procreation, profanation, prolongation, promulgation, propagation, prorogation, protestation, provocation, publication, punctuation, radiation, recantation, recitation, reclamation, re-creation, recreation, reformation, refutation, registration, regulation, rehydration, relaxation, relocation, renovation, reparation, replication, reprobation, reputation, reservation, resignation, respiration, restoration, retardation, revelation, revocation, ruination, rumination, rustication, salutation, sanitation, segmentation, segregation, separation, sequestration, service station, sexploitation, simulation, situation, speciation, speculation, spoliation, stimulation, stipulation, strangulation, structuration, stylization, subjugation, sublimation, suffocation, syncopation, syndication, tabulation, termination, T formation, titillation, toleration, transfer station, transformation, translocation, transmigration, transmutation, transpiration, transplantation, transportation, trepidation, tribulation, ulceration, ululation, undulation, urination, vaccination, vacillation, validation, valuation, variation, vegetation, veneration, ventilation, vindication, violation, visitation, weather station

Medical Dictionary


noun sat·u·ra·tion \ˌsach-ə-ˈrā-shən\

Medical Definition of saturation

  1. 1:  the act of saturating :  the state of being saturated

  2. 2:  conversion of an unsaturated to a saturated chemical compound (as by hydrogenation)

  3. 3:  a state of maximum impregnation; especially :  the presence in air of the most water possible under existent pressure and temperature

  4. 4a:  the one of the three psychological dimensions of color perception that is related to the purity of the color and that decreases as the amount of white present in the stimulus increases—called also intensity; compare brightness, hueb (1):  degree of difference from the gray having the same lightness—used of an object color (2):  degree of difference from the achromatic light-source color of the same brightness—used of a light-source color

Seen and Heard

What made you want to look up saturation? Please tell us where you read or heard it (including the quote, if possible).


to take off or remove

Get Word of the Day daily email!


Take a 3-minute break and test your skills!


Which is a synonym of indolent?

lazy philistine melancholy frenetic
Name That Thing

Test your visual vocabulary with our 10-question challenge!


Test Your Knowledge - and learn some interesting things along the way.