internal organ, viscus - a main organ that is situated inside the body

arteria coronaria, coronary artery - the artery that branches from the aorta to supply blood to the heart

athlete's heart - enlarged heart commonly found among athletes trained for endurance

biauriculate heart - a heart (as of mammals and birds and reptiles) having two auricles

cardiac muscle, heart muscle - the muscle tissue of the heart; adapted to continued rhythmic contraction

cardiac valve, heart valve - a valve to control one-way flow of blood

valve - a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it

cardiovascular system, circulatory system - the organs and tissues involved in circulating blood and lymph through the body

analog watch - a watch that represents time by the position of hands on a dial

watch crystal, watch glass, crystal - a protective cover that protects the face of a watch

digital watch - a watch with a digital display

face - the side upon which the use of a thing depends (usually the most prominent surface of an object); "he dealt the cards face down"

hunting watch, hunter - a watch with a hinged metal lid to protect the crystal

movement - the driving and regulating parts of a mechanism (as of a watch or clock); "it was an expensive watch with a diamond movement"

pendulum watch - (18th century) a watch with a balance wheel having a fake pendulum attached to it

pocket watch - a watch that is carried in a small watch pocket

stem-winder - a watch that is wound by turning a knob at the stem

timepiece, timekeeper - a measuring instrument or device for keeping time

watch case - the metal case in which the works of a watch are housed

wrist watch, wristwatch - a watch that is worn strapped to the wrist

character printer, character-at-a-time printer, serial printer - a printer that prints a single character at a time