(redirected from Transients)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.


(trans'shĕnt, -sē-ĕnt),
1. Short-lived; passing; not permanent; said of a disease or an attack.
2. A short-lived cardiac sound having little duration (less than 0.12 seconds) as distinct from a murmur; for example, first, second, third, and fourth heart sounds, clicks, and opening snaps.
[L. transeo, pres. p. transiens, to cross over]


[tran′shənt, tran′zē·ənt]
Etymology: L, transire, to go through
pertaining to a condition that is temporary, such as transient ischemic attack.


Sleep disorders The perceived or actual inability to sleep one's usual amount of time; a condition characterized by any combination of difficulty with falling asleep, staying asleep, intermittent wakefulness, and early-morning awakening; episodes may be transient, short-term–lasting 2 to 3 wks, or chronic Triggers Illness, depression, anxiety, stress, poor sleep environment, caffeine, abuse of alcohol, heavy smoking, physical discomfort, daytime napping, medical conditions, poor sleep habits–eg, early bedtime, excessive time awake in bed Examples Psychophysiologic–learned insomnia, delayed sleep phase syndrome, hypnotic dependent sleep disorder, stimulant dependent sleep disorder. See Circadian rhythm, Conditioned insomnia, Familial fatal insomnia, Jet lag, Pseudoinsomnia, Rebound insomnia, REM sleep, Sleep disorder, Sleep-onset insomnia.
Chronologic classification
• Transient–eg, 'jet lag'; does not require treatment
• Short term < 3 weeks in duration, due to travel to high altitudes, grieving loss of loved one, hospitalization, pain
• Long term > 3 weeks in duration, eg related to medical, neurologic or psychiatric disorders or addiction
• Pharmacologic Due to coffee, nicotine, alcohol
• Rebound (withdrawal) Related to abrupt discontinuation of hypnotic drugs
• Delayed sleep phase Due to shift work, chronic pain, sleep apnea and restless leg syndrome


Baldness Dermatology
1. Loss or absence of hair on the scalp.
2. Baldness, see there See Hair replacement, Hot comb alopecia, Moth-eaten alopecia.
Alopecia types
Male pattern
On the front and top–blame mother
Alopecia areata–blame mother, angry lover
Related to RT–blame radiation oncologist
Alopecia capitis totalis–blame mother
Due to chemotherapy—cyclophosphamide, cytosine arabinoside, doxorubicin–blame oncologist


1. Short-lived; not permanent.
2. A short-lived cardiac sound of short duration as distinct from a murmur.
[L. transeo, pres. p. transiens, to cross over]


(trans'shĕnt, -sē-ĕnt)
Short-lived; passing; not permanent.
[L. transeo, pres. p. transiens, to cross over]

transient (tran´zēənt),

adj pertaining to a condition that is temporary or of short duration, usually not recurring.
References in periodicals archive ?
Efron said that the transients confronted him and his bodyguard, believing that the pair had hurled the bottle at them.
At the undergraduate level, the subject of transients is covered under circuit theory.
7] Z Q Bo, A T Johns, "Transient Based Protection--A New Concept in Power System Protection", IPST'97, International Conference on Power System Transients, University of Washington, Seattle, Washington, USA, June 22-26, 1997
Authorities said they'd previously issued warnings to the 30 or so transients living in the arroyo, which is subject to flash floods during rainstorms.
However, most transients originate from sources other than lightning and are much more likely to travel longer distances throughout the AC power system.
Said Elliott, "This was a troublesome situation because transients endangered all mill processes, including dozens of pumps synchronized with massive rotating equipment.
50(b)(2) identifies property used predominantly for lodging, but excludes property used by a hotel or motel when the predominant portion of the accommodations is used by transients.
And to successfully battle a 6 m (20 ft)-long gray-whale calf, the female transients must team up.
SADs react to transients in less than one nanosecond (one billionth of a second) and MOVs react in less than five nanoseconds.
The population of killer whales that Saulitis studies, called transients, form small pods of four to five animals.
TVSS are used to protect electrical circuits from surges and transients that occur due to lightning, switching a light on or off, faulty motors, or those that happen within the devices themselves.
Indeed, very few radio transients have been detected so far their properties are poorly known.