uncoupler
an agent that inhibits ATP synthesis by dissociating it from the electron transport system at one or more of the phosphorylation sites.
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uncovertebral
pertaining to the uncinate processes of a vertebra.
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unction
1. an ointment. 2. application of an ointment or salve; inunction.
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unctuous
greasy or oily.
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uncus
the medially curved anterior part of the hippocampal gyrus.
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undecylenate
see undecylenic acid.
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undecylenic acid, undecanoic acid, undecenoic acid
an unsaturated fatty acid, used topically, in ointment or powder form, as an antifungal agent; toxic reactions are rare.
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undercoat
the fine hairs of an animal’s coat which are usually shorter and more numerous than the coarse guard hairs. In some breeds of dogs and cats, however, these may predominate.
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undercut
in the preparation of a tooth cavity for restoration, a cavity under the edges of the opening which is intended to aid in retention of a filling.
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underdevelopment
an error in x-ray film developing procedure. Causes the production of a flat film with poor contrast; the unexposed background is gray instead of black.
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