progesterone
UK[prəʊˈdʒɛstərəʊn]US[proʊˈdʒɛstəroʊn]
n
A female sex hormone that prepares the uterus for pregnancy and maintains it if pregnancy occurs.
Morpheme Breakdown
pro
gest
sterone
pro
forward, favoring
gest
carry, bear
sterone
steroid hormone suffix
Etymology
The term "progesterone" is a modern scientific coinage from the early 20th century, constructed from Latin roots to describe its biological function. The prefix "pro-" signifies its role in preparation or support, while the core "gest" directly references gestation, the process of carrying a fetus. Combined with the chemical suffix "-sterone," the word literally means "a steroid hormone that favors gestation." This logical construction elegantly captures the hormone's primary purpose: preparing and maintaining the uterine lining to support a potential pregnancy, thus bridging its literal compositional meaning to its precise modern medical definition.
Analysis
Structure: pro (forward, favoring) + gest (carry, bear) + sterone (steroid hormone suffix)
- pro: Latin origin, meaning "forward, before, in favor of". In this word, it indicates a preparatory or favoring role.
- gest: Latin origin, from the root of 'gerere' (to carry, bear, conduct). It relates to pregnancy and gestation.
- sterone: A modern scientific suffix derived from "sterol" (a type of lipid) + "one" (chemical suffix for ketones), indicating a steroid hormone.
Examples
Progesterone levels rise significantly during the second half of the menstrual cycle.
The doctor prescribed progesterone supplements to support the early stages of her pregnancy.
This medication works by blocking the effects of progesterone in the body.