这个词是什么意思？
Proteins, usually projecting from the cilia of olfactory receptor neurons, that specifically bind odorant molecules and trigger responses in the neurons. The large number of different odorant receptors appears to arise from several gene families or subfamilies rather than from DNA rearrangement.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D018035 · MeSH 2026。
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