| larynx |
a cartilaginous structure at the top of the trachea; contains elastic vocal cords that are the source of the vocal tone in speech
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| lethal gene |
any gene that has an effect that causes the death of the organism at any stage of life
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| livid |
ashen: anemic looking from illness or emotion; "a face turned ashen"; "the invalid's blanched cheeks"; "tried to speak with bloodless lips"; "a face livid with shock"; "lips...livid with the hue of death"- Mary W. Shelley; "lips white with terror"; "a face white with rage" (of a light) imparting a deathlike luminosity; "livid lightning streaked the sky"; "a thousand flambeaux...turned all at once that deep gloom into a livid and preternatural day"- E.A.Poe furiously angry; "willful stupidity makes him absolutely livid" black-and-blue: discolored by coagulation of blood beneath the skin; "beaten black and blue"; "livid bruises"
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| lumbosacral plexus |
a nerve plexus formed by the ventral divisions of the coccygeal and sacral and lumbar nerves; supplies the lower limbs and perineum and coccygeal area
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| lagging |
used to wrap around pipes or boilers or laid in attics to prevent loss of heat
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