hormone
US /ˈhɔːr.moʊn/
UK /ˈhɔːr.moʊn/

1.
hormone
a regulatory substance produced in an organism and transported in tissue fluids such as blood or sap to stimulate specific cells or tissues into action
:
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Insulin is a hormone that regulates blood sugar.
L'insuline est une hormone qui régule la glycémie.
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Growth hormones play a crucial role in development.
Les hormones de croissance jouent un rôle crucial dans le développement.