H1 receptor
noun
: a receptor for histamine on cell membranes that modulates the dilation of blood vessels and the contraction of smooth muscle see h1 antagonist
Cite this Entry
“H1 receptor.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/H1%20receptor. Accessed 18 Jul. 2025.
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