Category: A
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Ambulate
To walk or move about freely.
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Ambos
Incus or anvil bone of the middle ear.
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Amboceptor unit
The smallest quantity of anti-red blood cell (anti-RBC) antibody needed to hemolyze in an excess of complement.
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Amblyopia ex anopsia
Amblyopia resulting from disuse. It usually occurs in one eye and is associated with convergent squint or very poor visual acuity. The inhibition of vision in an eye with strabismus.
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Amblychromasia
The state in which the cell nucleus stains faintly.
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Amber codon
The nucleic acid sequence: uracil, adenine, guanine (abbreviated UAG). It is one of the three codons that signals the end of transcription of an mRNA molecule.
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Amaurosis partialis fugax
Sudden transitory blindness with symptoms similar to those of migraine: nausea; vomiting; dizziness; and disturbances of vision.
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Epileptoid amaurosis
Sudden blindness following an epileptic seizure and lasting up to 2 weeks.
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Amatoxin
The chemical component of poisonous mushrooms that causes early onset of gastrointestinal upset, followed about 36 hours later by liver failure.
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Amalgam condenser
In dentistry, tool used to compress restorative materials into a cavity preparation.