a stethoscope

(anatomy) a heart

to use / to employ / to make use of, to apply / to spend

auscultation (diagnosis by stethoscope or similar auditory device)

auscultate

doctor

to hear, to listen / to obey / to ask a question / to smell, sniff

container, vessel / a tool, a utensil / one's degree of ability: talent, calibre / female genitalia: a vagina

sound; echo; voice

a sound / when used with a "hear" verb, a rumor or fame / news, tidings / a reply, response