What does luteinizing mean?
Luteinizing means causing or relating to luteinization, a process in reproductive physiology associated with ovulation. After an ovarian follicle releases an egg, it changes into the corpus luteum, a temporary hormone-producing structure that prepares the body for possible pregnancy. The term is most commonly encountered in the established medical expression “luteinizing hormone,” or LH. A rise in LH shortly before ovulation helps trigger the final maturation and rupture of the dominant ovarian follicle. In fertility assessment, the timing of this luteinizing surge can help predict ovulation. The word belongs primarily to medical and scientific English rather than general conversation. North American usage usually spells it with a z, while British usage commonly uses the -ising form. Although the adjective is closely associated with ovulation, luteinization strictly names the follicle’s subsequent transformation into the corpus luteum.
adjectiveCausing luteinization, especially the process by which an ovarian follicle develops after ovulation and forms the corpus luteum. In reproductive endocrinology, the term is commonly used in relation to the hormone that triggers ovulation.
- Relating to or causing luteinization, the transformation of an ovarian follicle into the corpus luteum after ovulation.
"A surge in luteinizing hormone prompted the mature ovarian follicle to release its egg."
"The luteinizing hormone surge caused the mature follicle to rupture and release an egg."
"Clinicians used serial measurements to determine when the luteinizing surge was likely to occur."
A sudden surge of luteinizing hormone is the hormonal signal that sets ovulation in motion.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does luteinizing come from?
The word was formed from “luteinize,” which combines the element “lutein” with the suffix “-ize.” “Lutein” was coined in the early 19th century from New Latin, ultimately drawing on Latin luteus, meaning “yellow,” a reference to the pigment’s coloration. The physiological sense developed later through the terminology of ovarian biology.
Related word forms
How luteinizing is actually used
This is chiefly medical or biological terminology and is normally used attributively, especially in “luteinizing hormone.” British scientific writing generally prefers “luteinising.”