hormone
/ˈhoɹmoʊn/ noun B2- Any substance produced by one tissue and conveyed by the bloodstream to another to effect physiological activity.
- A synthetic compound with the same activity.
- Sex hormones, as used in hormone replacement therapy for transgender or intersex people. · I'm going to be going to slightly higher doses of hormones soon.
- Any similar substance in plants.
Plural hormones
From the library
Sleep is partly controlled by melatonin, a hormone that makes us feel sleepy when it gets dark.
When we hear sudden or loud sounds, our bodies naturally release powerful stress hormones.
In 1969, after thirty-four years of work, Dorothy Hodgkin and her team at Oxford finally worked out the three-dimensional structure of insulin, the hormone that people with type 1 diabetes cannot produce.
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