speech therapist
A speech therapist is a person who specialises in problems people experience with language.
spot
See pimple.
sprain
A sprain is an injury of the ligament —a bundle of fibres that attaches bones to joints— and this injury is caused when the ligaments are stretched or even torn.
stethoscope
A stethoscope is a device used by doctors to listen to the heartbeat and the sound of the lungs when we breathe or cough.
sting
A sting is an itching sensation of the body.