retentionre‧ten‧tion /rɪˈtenʃən/ ●○○ AWL noun [uncountable] 
Word Origin
The UN will vote on the retention of sanctions against Iraq.2technical the ability or tendency of something to hold liquid, heat etc within itself: Many people with heart problems suffer from fluid retention.3the ability to keep something in your memory: I have a real problem with retention of information.
Word OriginWORD ORIGINretention
ExamplesOrigin:
1300-1400 Latin retentio, from retinere; ➔ RETAINEXAMPLES FROM OTHER DICTIONARIES
word sets- One of the side effects of the drug is water retention.
- powers of retention
- Most of us tend to eat far too much, which can lead to fluid retention.
- The approach increased retention by about 15 percent over what it otherwise would have been.
- Without the topsoil, water retention is negligible.
- Without water retention the land becomes baked.
WORD SETS► Physics
Collocationsaether, nounamplitude, nounantimatter, nounantiparticle, nounastrophysics, nounatom, nounatomic, adjectiveattract, verbattraction, nounballistics, nounbeam, nounblack hole, nounbuoyancy, nouncalorie, nouncalorific, adjectivecapillary action, nouncathode ray tube, nouncentre of gravity, nouncentrifugal force, nouncentrifuge, nouncentripetal force, nounchain reaction, nouncondensation, nounconduct, verbconduction, nounconductive, adjectiveconductor, nounconvect, verbconvection, nouncore, nouncritical mass, noundemagnetize, verbdense, adjectivedensity, noundisplacement, noundynamic, adjectiveelectron, nounelementary particle, nounfallout, nounfissile, adjectivefission, nounfocus, verbfrequency, nounfriction, nounfusion, noungamma ray, noungravitation, noungravitational, adjectivegravity, nounhalf-life, nounhertz, nounhydraulic, adjectiveHz, imaging, nounimpetus, nouninertia, nouninvariable, adjectiveion, nounionize, verbkinetic, adjectivelaser, nounlift, nounliquefaction, nounliquefy, verblodestone, nounmagnet, nounmagnetic, adjectivemagnetic field, nounmagnetism, nounmagnetize, verbmass, nounmechanical, adjectivemedium, nounmeltdown, nounmomentum, nounmotive, adjectivemushroom cloud, nounnatural philosophy, nounneutron, nounNewtonian, adjectivenuclear, adjectivenuclear fission, nounnuclear fusion, nounnuclear physics, nounnuclear reactor, nounnucleus, nounoptical fibre, nounparticle accelerator, nounparticle physics, nounphonic, adjectivephosphorescence, nounphosphorescent, adjectivephoto-, prefixphoton, nounphotosensitive, adjectivephotosensitize, verbphysical, adjectivephysicist, nounphysics, nounpivot, nounpolar, adjectivepole, nounpotential energy, nounpower, nounpressure, nounpropulsion, nounproton, nounpull, nounquantum mechanics, nounquantum theory, nounquark, nounradiate, verbradiation, nounradio wave, nounray, nounreaction, nounreactor, nounreflect, verbreflector, nounrefract, verbrelativity, nounrepel, verbrepulsion, nounrepulsive, adjectiveresilience, nounresilient, adjectiveresistance, nounresonance, nounretention, nounsolid-state, adjectivesonic, adjectivesonic boom, nounsound wave, nounspace, nounspecific gravity, nounspectral, adjectivespectroscope, nounspectrum, nounstatics, nounsteady state theory, nounstrain, nounstress, nounsurface tension, nountension, nounthermodynamics, nounthrust, nountraction, nountrajectory, nountransmit, verbultrasonic, adjectiveultrasound, nounvacuum, nounvaporize, verbvapour, nounvector, nounwave, nounwavelength, nounwork, noun
COLLOCATIONS FROM THE CORPUSADJECTIVE► fluid
Word family· Elimination: problems may manifest as constipation, fluid retention, congested skin, catarrh. 4.· Addition of solute causes a rise in tonicity with stimulation of both thirst and antidiuretic hormone release. Fluid retention ensues.· Most of us tend to eat far too much, which can lead to fluid retention.· It is characterized by escalating blood pressure, protein in the urine and fluid retention in the extremities.· Twenty minutes later Slendertone pads were placed on Santa's fattest points to break down fluid retention.· Don't sleep in an overheated room as this can cause fluid retention in your face and bags under the eyes.· Calorie-free fluids do not add to body fat, hinder weight loss or cause fluid retention in those of normal health.
NOUN► interval· This effect, however, appears to interact with retention interval in a way that is not necessarily consistent with repression interpretations.· This interaction between arousal and retention interval does appear to be robust.· When this was the case there was an interaction between retention interval and interpolated parking episodes.
► rate· By using panel survey methods, the recruitment and retention rates of members can be tracked over time.· So in 1990, School & Main launched an ambitious initiative to improve college retention rates for young people called Higher Ground.· A.. Watch customer loyalty, retention rates, share of purchases.
► water· Reduce your intake of salt, sugar and junk foods - especially beneficial if you suffer from water retention.· He also tries traditional medications for pain, water retention, anxiety and hypoglycemia.· Bingeing on carbohydrates also causes water retention and therefore temporary weight gain.· The decrease in sodium reabsorption by the renal tubules will be accompanied by decreased chloride and water retention.· Without the topsoil, water retention is negligible.· Without water retention the land becomes baked.· When renal failure supervenes with sodium and water retention contributing significantly to hypertension, then a diuretic may be particularly useful.
WORD FAMILYnounretentionverbretain
1formal the act of keeping somethingretention of The UN will vote on the retention of sanctions against Iraq.2technical the ability or tendency of something to hold liquid, heat etc within itself: Many people with heart problems suffer from fluid retention.3the ability to keep something in your memory: I have a real problem with retention of information.