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Basophil:
a white blood cell (leukocyte) which degranulates during anaphylaxis to release histamine and other mediators of hypersensitivity.
Beta-blockers:
drugs that block one of the receptors for epinephrine and, hence, its effect. They are used to treat hypertension, angina, tremor and migraine.
B.I.D:
twice daily. (Bis in Die)
Bias:
systematic error introduced into sampling or testing by selecting or encouraging one outcome or answer over others. Researchers try to avoid bias through randomized controlled double blind trials.
Bioengineering:
manipulation of genetic material to produce different strains (e.g. crops/food).
Biphasic:
characterized by two distinct episodes.
Botanical Groups:
foods that are members of the same family. Sometimes there can be cross sensitivity within a group (e.g. peanuts and other legumes).
Bronchi:
(pl.) the larger passages conveying air to and within the lungs.
Bronchioles:
the finer subdivisions of the air passages within the lungs.
Bronchodilation:
a dilated (open) state of a bronchus.
Bronchodilator:
an agent that causes dilatation (opening) of the bronchi.
Bronchospasm:
spasmodic contraction of the smooth muscle coating of the bronchi which leads to narrowing, as occurs in asthma.
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