- any of a class of insect and plant hormones acting to inhibit the molting of a juvenile insect into its adult form.
Origin of juvenile hormone
First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a hormone, secreted by insects from a pair of glands behind the brain, that promotes the growth of larval characteristics and inhibits metamorphosis