olfactory cell
Technical term in biology and medicine for a sensory cell involved in smell.
Olfactory cells are located in the olfactory epithelium deep inside the nasal cavity.
受容体 is a receptor (protein), whereas 嗅細胞 is the entire cell containing those receptors.
Compound of 嗅 (kyū, 'smell') + 細胞 (saibō, 'cell'). A straightforward technical coinage.