Endorectal ultrasound. A procedure in which a probe that sends out high-energy sound waves is inserted into the rectum. Thesound waves are bounced off internal tissues or organs and make echoes. The echoes form a picture of body tissue called a sonogram. ERUS is used to look for abnormalities in the rectum and nearby structures, including the prostate. Also called transrectal ultrasound.

The following video provides you with the correct English pronunciation of the word "erus", to help you become a better English speaker.

N M
master| owner

erus, eri
n. m. master, owner; 

owner