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labile

[ ley-bahyl, -buhl ]

adjective

  1. apt or likely to change:

    the labile nature of language.

  2. (in chemistry, biology, psychiatry, etc.) able or likely to change or break down easily, rapidly, or continually; unstable:

    labile emotions;

    labile blood pressure;

    cellular functions that seem to require different levels of labile zinc.



labile

/ ˈleɪbɪl; ləˈbɪlɪtɪ /

adjective

  1. chem (of a compound) prone to chemical change
  2. liable to change or move
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Derived Forms

  • lability, noun
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Other Words From

  • la·bil·i·ty [l, uh, -, bil, -i-tee, ley-], noun
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Word History and Origins

Origin of labile1

First recorded in 1400–50; late Middle English labil “(of the mind) wandering, forgetful,” from Latin lābilis “sliding, slipping, (of verse) smooth-flowing,” equivalent to Latin lāb(ī) “to slip” + -ilis -ile
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Word History and Origins

Origin of labile1

C15: via Late Latin lābilis, from Latin lābī to slide, slip
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Example Sentences

“People with a history of trauma and mental illness tend to be emotionally labile,” Kupers added.

On the contrary the labile opsonins of normal serum have a comparatively general action on different organisms.

This is readily intelligible on the supposition that the toxophorous group is more labile than the haptophorous.

The latter is ferment-like and much more labile than the former, being readily destroyed at 60 C.

In both cases an extremely labile connection with consciousness arises which leads to a rapid forgetting.

We are rather like the labile chemical compounds: our molecules readily rearrange themselves.

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Labichelability