yawn


Also found in: Dictionary, Thesaurus, Legal, Financial, Acronyms, Idioms, Encyclopedia, Wikipedia.

yawn

(yawn),
1. To gape.
2. An involuntary opening of the mouth, usually accompanied by inspiration; it may be a sign of drowsiness or of vital depression, as after hemorrhage, but is often caused by suggestion.
[A.S. gānian]

yawn

(yôn)
v. yawned, yawning, yawns
v.intr.
To open the mouth wide with a deep inhalation, usually involuntarily from drowsiness, fatigue, or boredom.
n.
The act of yawning.

yawn′er n.

yawn

[yôn]
Etymology: AS, geonian
an involuntary act of opening the mouth wide and taking a deep breath. It tends to occur when a person is bored, drowsy, or depressed and may be accompanied by upper body movements or the act of stretching to aid chest expansion.

yawn

The involuntary opening of mouth to inhale/exhale O2/CO2; thought to be a response to the slowed breathing typical of boredom, exhaustion or sedentary inactivity—which are characterised by increased CO2 and reduced O2 in the circulation—by opening the mouth wide and inhaling deeply, yawns quickly intake O2 and expel CO2 to bring the gases back to normal levels.

yawn

 The involuntary opening of mouth, often caused by suggestion–“contagious” and accompanied by breathing inward then outward; repeated yawning may indicate drowsiness, depression, or boredom

yawn

(yawn)
1. To gape.
2. An involuntary opening of the mouth, usually accompanied by a movement of respiration; it may be a sign of drowsiness or of vital depression, as after hemorrhage, but is often caused by suggestion.
[A.S. gānian]

yawn

(yawn)
1. To gape.
2. An involuntary opening of the mouth, usually accompanied by inspiration; it may be a sign of drowsiness or of vital depression, as after hemorrhage, but is often caused by suggestion.
[A.S. gānian]
References in periodicals archive ?
To avoid detection by the credit union and outside auditors, prosecutors said, Yawn occasionally posted large fraudulent deposits in GPVFCU accounts to make it appear that the credit union had more funds on hand than it actually did.
Foetal yawns occurred more frequently than simple mouth openings early in pregnancy, but declined after 28 weeks.
Contagious yawns are not to be confused with spontaneous yawns.
According to an evolutionary psychologist, it is contrary to what had been heard informally; dog owners have claimed that they catch their dogs' yawns, but their dogs never yawned when they did.
Despite the new insight into why yawning is contagious the US research has still not shed any light on exactly why we yawn.
Mong Yawn, the new base of the 5,000-strong United Wa State Army (UWSA), is under construction and Myanmar and the UWSA plan to relocate more than 50,000 people to the new town.
But why do you yawn when you see other people yawning?
When you yawn, you breathe in slowly and deeply and then let the air back out.
In nonhuman primates males yawn significantly more than females; this is not true in humans (Schino & Aureli, 1989).
Here's something for dog owners to try: Offer a big yawn and see if Fido yawns back.
Just seeing someone else yawn can get you going as well.