transient

adj. temporary, impermanent

n. provisional, temporary, impermanent

Transience means passing with time. Something which has the property of transience is said to be transient, or often simply a transient or transient state.Examples include:Transient (acoustics)A transient astronomical event is a phenomenon that is relatively short-lived by astronomical standards. Examples include supernovae, comets, and meteors.Transient state (chemical engineering)Transient (civil engineering)Transient (computer programming)Transient (electricity)A transient laborer is a type of temporary laborerA feeling of transience, called Mono no aware, has been important in Japanese culture.A transient screen is an element in user interface designTransience, a short story by Arthur C. Clarke
See more at Wikipedia.org...

Noun
1. one who stays for only a short time; "transient laborers"
(hypernym) traveler, traveller
2. (physics) a short-lived oscillation in a system caused by a sudden change of voltage or current or load
(hypernym) oscillation, vibration
(classification) physics, physical science, natural philosophy
Adjective
1. of a mental act; causing effects outside the mind
(synonym) transeunt
(classification) philosophy
2. enduring a very short time; "the ephemeral joys of childhood"; "a passing fancy"; "youth's transient beauty"; "love is transitory but at is eternal"; "fugacious blossoms"
(synonym) ephemeral, passing, short-lived, transitory, fugacious
(similar) impermanent, temporary

(n.)
That which remains but for a brief time.
  

(a.)
Staying for a short time; not regular or permanent; as, a transient guest; transient boarders.
  

(a.)
Passing before the sight or perception, or, as it were, moving over or across a space or scene viewed, and then disappearing; hence, of short duration; not permanent; not lasting or durable; not stationary; passing; fleeting; brief; transitory; as, transient pleasure.
  

(a.)
Hasty; momentary; imperfect; brief; as, a transient view of a landscape.
  

See dynamic variation.