semantic pointers
hyponym
ballistocardiograph, cardiograph
bronchoscope
electrocardiograph, cardiograph
dialyzer, dialysis machine
diathermy machine
electroencephalograph
electromyograph
endoscope
fiberscope
keratoscope
laryngoscope
ophthalmoscope
otoscope, auriscope, auroscope
polygraph
rhinoscope
speculum
stethoscope
surgical instrument
syringe
thermograph
hypernym