1. Inactive, resting. For example, tuberculosis can be a quiescent (inactive) infection. 2. Marked by a state of inactivity, repose, or tranquillity. For example, a quiescent stem cell is a stem cell that is resting at the time but that might be stimulated later to divide and proliferate. Quiescent also means causing no trouble or symptoms. For example, a case of leukemia may be quiescent, causing no problems; the leukemia is in remission and the person has no symptoms of it. The word "quiescent" comes from the Latin "quiescere", to become silent. Quiescent often suggests a temporary cessation of activity, as in "a quiescent disease."
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At rest or inactive.

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qui·es·cent -ənt adj
1) being in a state of arrest <\quiescent tuberculosis>
2) causing no symptoms <\quiescent gallstones>

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describing a disease that is in an inactive or undetectable phase.

Medical dictionary. 2011.

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  • quiescent — quiescent, ente [ kjesɑ̃, ɑ̃t ] adj. • 1911; lat. quiescens, p. prés. de quiescere « se reposer » 1 ♦ Biol., méd. Se dit d un organe au repos ou d un processus temporairement arrêté dans son développement. 2 ♦ Ling. Se dit, dans certaines langues …   Encyclopédie Universelle

  • Quiescent — Qui*es cent, a. [L. quiescens, entis, p. pr. of quiescere: cf. F. quiescent. See {Quiesce}.] 1. Being in a state of repose; at rest; still; not moving; as, a quiescent body or fluid. [1913 Webster] 2. Not ruffed with passion; unagitated; not in… …   The Collaborative International Dictionary of English

  • quiescent — quiescent, ente (kui è ssan, ssan t ) adj. 1°   Terme de grammaire hébraïque. Lettres quiescentes, celles qui ne se prononcent pas, si elles n ont avec elles certains points représentant la voyelle qu elles doivent faire entendre.    Il se dit… …   Dictionnaire de la Langue Française d'Émile Littré

  • Quiescent — Qui*es cent, n. (Gram.) A silent letter. M. Stuart. [1913 Webster] …   The Collaborative International Dictionary of English

  • quiescent — index dormant, lifeless (dull), mute, passive, patient, peaceable, placid, stagnant …   Law dictionary

  • quiescent — c.1600, from L. quiescens, prp. of quiescere, from quies rest, quiet (see WHILE (Cf. while)). Quiescence is from 1630s. Quiesce is used in English from 1828 …   Etymology dictionary

  • quiescent — *latent, dormant, potential, abeyant Analogous words: quiet, *still, silent: inert, *inactive, passive, supine …   New Dictionary of Synonyms

  • quiescent — [adj] inactive asleep, at rest, deactivated, dormant, fallow, idle, immobile, in abeyance, inert, inoperative, latent, motionless, passive, quiet, slumbering, stagnant, still; concept 584 Ant. active …   New thesaurus

  • quiescent — ► ADJECTIVE ▪ in a state or period of inactivity. DERIVATIVES quiescence noun quiescently adverb. ORIGIN from Latin quiescere be still , from quies quiet …   English terms dictionary

  • quiescent — [kwī es′ənt, kwēes′ənt] adj. [L quiescens, prp. of quiescere, to become quiet: see QUIET] quiet; still; inactive SYN. LATENT quiescence n. quiescently adv …   English World dictionary

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