- 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 s) as distinct from a murmur; e.g., first, second, third, and fourth heart sounds, clicks, and opening snaps. [L. transeo, pres. p. transiens, to cross over]
* * *tran·sient 'tran-zē-ənt, 'tranch-ənt adj passing away in time: existing temporarily <\transient symptoms>
* * *tran·sient (tranґshent) (tranґse-ənt) [L. transiens present participle of transire to go across] an isolated wave or complex seen on an electroencephalogram.
Medical dictionary. 2011.