(suffix)(instrument)graph

actinograph     instrument used to calculate time of photographic exposure..
anemograph      instrument for measuring pressure and velocity of wind..
ballistocardiograph     instrument for detecting body movements caused by heartbeat
barograph       instrument for recording air pressure ..
bathythermograph        instrument for recording water temperature as
compared to depth ..
cardiograph     instrument for recording movements of the heart.
ceraunograph    instrument for recording thunder and lightning.
chromatograph   instrument for performing chromatographic separations.
chronograph     instrument for recording the moment of an event..
coronagraph     instrument for viewing the corona of the sun .
crescograph     instrument for measuring the growth of plants..
cyclograph      instrument for describing arcs of circles without compasses.
cymograph       instrument for tracing the outline of mouldings..
diagraph        instrument for enlarging or projecting drawings..
diplograph      instrument for writing two lines of text at once.
dynamograph     instrument for recording mechanical forces..
eidograph       instrument for copying drawings.
electrocardiograph      instrument for recording unusual electrical
fluctuations of the heart
electroencephalograph   instrument for measuring the brain's electrical impulses.
electrograph    instrument for recording electrical potential .
electromyograph         instrument for diagnosing neuromuscular disorders
electroretinograph      instrument for measuring electrical activity in the retina.
ellipsograph    instrument for describing ellipses .
encephalograph  instrument for recording brain images.
ergograph       instrument for measuring and recording muscular work..
gyrograph       instrument for counting a wheel's revolutions .
harmonograph    instrument drawing curves representing vibrations.
helicograph     instrument for drawing spirals on a plane
heliograph      instrument for measuring intensity of sunlight..
hyetograph      instrument for recording rainfall.
hyetometrograph         instrument for recording rainfall.
hygrograph      instrument for recording variations in atmospheric humidity.
keraunograph    instrument for recording distant thunderstorms.
kymograph       instrument for recording fluid pressure.
loxodograph     device used to record ship's travels.
magnetograph    instrument for recording measurements of magnetic fields.
marigraph       instrument for recording tide levels.
meteorograph    instrument recording a variety of meteorological observations.
microbarograph  instrument for recording minute changes in atmospheric pressure.
micrograph      instrument used to write on a very small scale.
microseismograph        instrument for recording small or distant earthquakes.
myograph        instrument for recording muscular contractions.
nephograph      instrument for photographing clouds.
odograph        odometer; instrument for measuring distance travelled.
odontograph     instrument for obtaining curves for gear-teeth.
ondograph       instrument measuring change in wave formations of electricity.
pallograph      instrument measuring ship's vibration.
pantograph      instrument for copying drawing to a different scale.
phonautograph   instrument for recording sound vibrations.
phototelegraph  instrument for transmitting drawings telegraphically.
planigraph      instrument for copying drawings at a different scale.
plethysmograph  instrument for measuring change in body part size due
to blood flow.
pluviograph     self-registering rain gauge.
pneumograph     instrument for measuring and recording respiration.
polygraph       instrument for measuring small changes in pulse and respiration.
psychograph     instrument that supposedly records spirit messages.
radiometeorograph       instrument for measuring atmospheric conditions at
high altitude
scotograph      instrument for writing without seeing.
seismograph     instrument for recording earthquakes
sonograph       instrument for recording and analysing sound.
spectrograph    instrument for viewing a spectrum.
spectroheliograph       instrument for taking pictures of the sun.
spectroheliokinematograph       camera for taking pictures of the sun.
sphygmograph    instrument for recording pulse.
spirograph      instrument recording movements of breathing.
tachograph      instrument for recording speed of rotation.
thermograph     instrument for recording changes in temperature.
thermometrograph        instrument for recording changes in temperature.
tomograph       instrument for viewing section of an object using X-rays.
torsiograph     instrument for recording torsional vibrations on an object.
tremograph      instrument for recording involuntary muscular motion.
typhlograph     instrument to help the blind write clearly.
vibrograph      instrument for recording vibrations.