This is the 10912th most frequent Portuguese word.
inguinais
"Inguinais" refers to something related to the groin area.
In this sentence, 'inguinais' is used as an adjective to describe the lymph nodes located in the inguinal region, which is the area of the groin.
Os linfonodos inguinais podem inchar devido a uma infecção.
The inguinal lymph nodes may swell due to an infection.
Here, 'inguinais' modifies 'regiões' (regions), indicating that the discussion pertains to the groin areas of the body.
Ela mencionou que sentia dor nas regiões inguinais após o exercício.
She mentioned feeling pain in the inguinal regions after exercising.
In this case, 'inguinais' describes 'estruturas' (structures), again referencing anatomical components located in the groin region.