Gonad

Part of speech: noun

Pronunciation: /ˈɡəʊ.næd/

Definitions

1. A paired biological structure involved in the production of reproductive cells like sperm or eggs, while also participating in hormone regulation and sexual development
2. An entity in organisms that generates gametes, either sperm or eggs, and manages hormonal functions essential for reproduction
3. A biological organ responsible for producing reproductive cells such as sperm or ova and playing a role in regulating hormones related to sexual characteristics

Etymology: The word is a modern scientific coinage, not an ancient one. In 1880 the New Latin term "gonadēs" appeared as the plural of "gonas", a formation built from the Ancient Greek "gonḗ", meaning "seed, begetting, birth, offspring". That noun comes from "gígnesthai", "be born", so the whole family of meanings centres on generation and origin. The sense of the organs themselves was assigned later in biology: the gonads are the structures that make reproductive cells and, in doing so, shape the hormones linked to sexual characteristics. The Greek root carried the idea of giving rise to new life, and the nineteenth-century coiners simply applied it to the organ that does exactly that.

Synonyms: testis, ovary, reproductive gland, sexual organ, genital gland