Sleep
Urdu meanings: Sona
Usage:
verb (used without object), slept, sleeping.
verb (used with object), slept, sleeping.
noun
Verb phrases
sleep in Science
sleep
(slēp)
A natural, reversible state of rest in most vertebrate animals, occurring at regular intervals and necessary for the maintenance of health. During sleep, the eyes usually close, the muscles relax, and responsiveness to external stimuli decreases. Growth and repair of the tissues of the body are thought to occur, and energy is conserved and stored. In humans and certain other animals, sleep occurs in five stages, the first four consisting of non-REM sleep and the last stage consisting of REM sleep. These stages constitute a sleep cycle that repeats itself about five times during a normal episode of sleep. Each cycle is longer that the one preceding it because the length of the REM stage increases with every cycle until waking occurs. Stage I is characterized by drowsiness, Stage II by light sleep, and Stages III and IV by deep sleep. Stages II and III repeat themselves before REM sleep (Stage V), which occurs about 90 minutes after the onset of sleep. During REM sleep, dreams occur, and memory is thought to be organized. In the stages of non-REM sleep, there are no dreams, and brain activity decreases while the body recovers from wakeful activity. The amount and periodicity of sleep in humans vary with age, with infants sleeping frequently for shorter periods, and mature adults sleeping for longer uninterrupted periods.
Urdu meanings: Sona
Usage:
Let me sleep
(Mujhay sonay do)
sleep
[sleep]
1.
to take the rest afforded by a suspension of voluntary bodily functions and the natural suspension, complete or partial, of consciousness; cease being awake.
2.
Botany. to assume, especially at night, a state similar to the sleep of animals, marked by closing of petals, leaves, etc.
3.
to be dormant, quiescent, or inactive, as faculties.
4.
to be careless or unalert; allow one's alertness, vigilance, or attentiveness to lie dormant:
While England slept, Germany prepared for war.
5.
to lie in death:
They are sleeping in their tombs.
6.
to take rest in (a specified kind of sleep):
He slept the sleep of the innocent.
7.
to accommodate for sleeping; have sleeping accommodations for:
This trailer sleeps three people.
8.
to spend or pass in sleep (usually followed by away or out):
to sleep the day away.
9.
to recover from the effects of (a headache, hangover, etc.) by sleeping (usually followed by off or away).
10.
the state of a person, animal, or plant that sleeps.
11.
a period of sleeping :
a brief sleep.
12.
dormancy or inactivity.
13.
the repose of death.
14.
sleeper.
15.
sleep around, Informal. to have sexual relations with many partners, especially in a casual way; be sexually promiscuous.
16.
sleep in,
- (especially of domestic help) to sleep where one is employed.
- to sleep beyond one's usual time of arising.
17.
sleep on, to postpone making a decision about for at least a day:
to sleep on a proposal till the end of the week.
18.
sleep out,
- (especially of domestic help) to sleep away from one's place of employment.
- Chiefly Northern U.S. to sleep away from one's home.
- to sleep outdoors.
19.
sleep over, to spend one or more nights in a place other than one's own home:
Two friends will sleep over this weekend.
20.
sleep together, to be sexual partners; have a sexual relationship.
21.
sleep with, to have sexual relations with.
A natural, reversible state of rest in most vertebrate animals, occurring at regular intervals and necessary for the maintenance of health. During sleep, the eyes usually close, the muscles relax, and responsiveness to external stimuli decreases. Growth and repair of the tissues of the body are thought to occur, and energy is conserved and stored. In humans and certain other animals, sleep occurs in five stages, the first four consisting of non-REM sleep and the last stage consisting of REM sleep. These stages constitute a sleep cycle that repeats itself about five times during a normal episode of sleep. Each cycle is longer that the one preceding it because the length of the REM stage increases with every cycle until waking occurs. Stage I is characterized by drowsiness, Stage II by light sleep, and Stages III and IV by deep sleep. Stages II and III repeat themselves before REM sleep (Stage V), which occurs about 90 minutes after the onset of sleep. During REM sleep, dreams occur, and memory is thought to be organized. In the stages of non-REM sleep, there are no dreams, and brain activity decreases while the body recovers from wakeful activity. The amount and periodicity of sleep in humans vary with age, with infants sleeping frequently for shorter periods, and mature adults sleeping for longer uninterrupted periods.
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