HRT vs hormone replacement therapy

HRT and hormone replacement therapy both are nouns.

Word	Noun	Adjective	Verb	Adverb
HRT	Yes	No	No	No
hormone replacement therapy	Yes	No	No	No

As nouns, HRT and hormone replacement therapy are synonyms defined as:

HRT and hormone replacement therapy: hormones (estrogen and progestin) are given to postmenopausal women; believed to protect them from heart disease and osteoporosis

Other synonyms of HRT include hormone-replacement therapy.

HRT (noun)	hormone replacement therapy (noun)
hormones (estrogen and progestin) are given to postmenopausal women; believed to protect them from heart disease and osteoporosis	hormones (estrogen and progestin) are given to postmenopausal women; believed to protect them from heart disease and osteoporosis