tur·bid

(tûr′bĭd)

adj.

1. Having sediment or foreign particles stirred up or suspended; muddy: turbid water.

2. Heavy, dark, or dense, as smoke or fog.

3. In a state of turmoil; muddled: turbid feelings.

[Latin turbidus, disordered, from turba, turmoil, probably from Greek turbē.]

tur′bid·ly adv.

tur′bid·ness, tur·bid′i·ty n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Mentioned in

turbid

References in classic literature

The clock ticked through the minutes of a half-hour and the afternoon outside began to thicken and darken turbidly. Alexander, since he first sat down, had not changed his position.

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Many dictionaries use each word as a reference to the other: "rile--see roil" and "roil--see rile." In usage today, rile means "to make angry," while roil means "to make turbid (cloudy, opaque, or murky) by stirring up or to move turbidly."

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The high turbidity levels in the water tanks are urgently problematic because high turbidly may shield disease-causing microorganisms from disinfection processes stimulate the growth of bacteria and generate a significant chlorine demand (WHO 2008).

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