The plural of chemoreceptivity; the qualities or states of being able to detect and respond to chemical substances.
From chemo- (chemistry) + receptivity (ability to receive). Receptivity comes from Latin receptivus, meaning 'able to receive.' The suffix -ity creates a noun meaning a state or quality, and -ities is the plural form.
Your taste buds and smell receptors are constantly showing chemoreceptivity—they're the reason you can tell salt from sugar without looking, and why fresh-baked cookies smell so amazing even from another room.
Complete word intelligence in one call. Free tier — 50 lookups/day.