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(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 ?
11,24) A study showed that coincident glutamatergic and cholinergic inputs transiently depress glutamatergic release at the CA1 synapse.
That has been changed in the new code to Group R-1, "Residential buildings or spaces occupied, as a rule, transiently, for a period of less than one month, as the more or less temporary abode of individual or families who are lodged with or without meals .
And these transiently lower free thyroxine levels were associated with worse cognitive and perceptual abilities in assessments at 3, 6, and 14 months of age, Nevena Simic said at the annual meeting of the American Thyroid Association.
Patients can interpret this as having a problem regulating their emotions, impulses, anger, relationships, identity, and, transiently, their cognitive understanding.
In a press release the Deutsche Stiftung Organtransplantation (DSO) said the donor was a young woman who suffered a cardiac arrest that lead to brain death due to a lack of oxygen despite resuscitation measures that transiently stabilized her circulation.
In contrast to the studies conducted with 3-CB, benzoate did transiently accumulate in 2-CP-transforming systems.
No, a neonate is transiently blind, so these are well covered up by the time we generate our first visual image.
However, after being placed in and 5 minutes later removed from a novel setting, the reserved animals displayed elevated corticosterone concentrations for at least 40 minutes, while the bolder group's corticosterone readings rose transiently before dipping back to baseline.
The method teaches to transiently express in susceptible plants large numbers of R-gene homologs or non-host inducible genes isolated from non-host resistant plants.
Consequently, protein synthesis is not only halted transiently by either component used alone but also halted permanently by the two components in combination, resulting in synergistic and concentration-independent bactericidal activity against many pathogens.
Here we show that this [beta]-globin/DHFR vector can be used to transiently generate retroviral particles in 293T cells.