Any of various instruments used to measure the internal or external dimensions of the pelvis, esp. in order to predict possible problems during…

A slender metal ruler attached to an obstetrical forceps, used to measure the diameter of the fetal head. Cf. labidometer, n.

Any of several devices used to measure respiratory volumes and pressures. Cf. pneumatometer, n., spirometer, n.

A means of measuring the strength of a person's nerves. Obsolete.

†(a) something that measures or indicates the state of a person's heart, as the seat of conscience, feelings, affections, etc. (obsolete); (b) any…

Any of several types of instrument used to measure the volume or force of respiration.

an instrument for measuring the size of a stone in the bladder (New Sydenham Soc. Lexicon); also attributive.

An instrument for determining the specific gravity or weight of urine.

An instrument for measuring the breathing power of the lungs.

A slender metal ruler attached to an obstetrical forceps, used to measure the diameter of the fetal head; = labimeter, n.

An instrument for measuring the height and weight of an infant.

An instrument for measuring the extent of the movement of the walls of the chest in breathing.

Any of various instruments used to measure respiratory volumes or air flow. Cf. pneumatometer, n.

Any of several devices intended to examine or measure a person's mental processes or emotional responses. Now historical.

Any of various instruments used to measure sensitivity to tactile or other sensory stimuli.

an instrument for measuring the angles and determining the configuration of the chest. (See also following words.)

Medicine. Any of various devices used to measure aspects of respiratory function, esp. the volume of air moved during breathing. Also with…

An instrument for measuring the force of respiration; a spirometer.

an instrument for measuring the capacity of the chest, or the movement of the walls of the chest in respiration, a stethometer.

Any of various types of apparatus or instrument used to measure and record the movements or the mechanical or electrical activity of the heart; (in…

representing Greek κυρτο- from κυρτός curved, arched. In some recent technical terms, as cyrtoˈceratite n. Palaeontology a fossil cephalopod of the…

An instrument for displaying or recording muscular contractions and relaxations; (now) esp. an electromyograph.

= myograph, n.

Any of various types of instrument used to record respiratory muscle or air movements.

An instrument for registering the movements and amount of expiration and inspiration.

Originally: †an instrument for graphically recording movements in various parts of the body, a myograph (obsolete). Now: an instrument for the…

= pneumograph, n.

= pelvimeter, n.

An instrument for measuring the sense of pressure.

an instrument for automatically recording at once the movements of the lungs and of the heart (cf. stethograph, n., cardiograph, n.).

An instrument for automatically recording the movements of the chest in breathing; a recording stethometer; also called pneumograph.

see quots. and haemato-, comb._form.

An instrument for recording pulsations, as in respiration: see quots.

an apparatus for measuring the movement of the chest-wall in respiration; a stethometer.

Any of various devices used to test and measure the acuity of hearing, typically by producing sounds of known frequency and intensity.

an instrument for measuring the angle of turning or torsion of a part of the body, esp. an eye or a bone.

An instrument for measuring the quantity of air inspired into the lungs.

an instrument for recording variations in the size of an organ, used in connection with an oncometer.

An instrument for measuring variations in the size of an organ or part. Now rare.

Any of several instruments used to measure the thickness of the nasal septum.

An instrument for investigating the properties of different areas of the skin, by which a movable point whose position can be measured may be…

(a) an instrument for measuring the force and duration of expiration by means of a light disc suspended in front of the mouth and connected to a…

An instrument for measuring the kinaesthetic sensitivity of an individual.

A device for measuring the contractile force of the uterus or the movement of the fetus during childbirth.

= spirometer, n.

An instrument which provides a continuous tracing of the movements of the lungs during respiration.

a recording tonometer; see also quot. 1890.

An instrument for recording measurements of the pelvis.

Medicine. An instrument for recording the movements of the diaphragm. Cf. phrenogram n. at phreno-, comb._form affix 2. Obsolete. rare.

An instrument for measuring the profile of the face. rare.

One who, or that which, calibrates; spec. in Medicine, an instrument for measuring the calibre of a passage, etc.

an instrument for recording involuntary muscular tremor.

(see quot.).

Any of various instruments used to measure the adaptation of the eye (cf. adaptation, n. 2b) to changes in the intensity or colour of light, used…

Medicine. An instrument for producing a graphic record of the heart sounds. Cf. earlier phonendoscope, n. disused. rare.

An instrument for recording the electrical activity of the heart.

Any of various instruments that record or display phonocardiograms.

any of various devices for measuring the range of movement of joints; cf. goniometer, n.

An instrument for recording the rate of air or gas flow during respiration.

any instrument for measuring pressure and volume within the bladder.

any of various instruments used to measure the rate at which the heart beats.

(a) = encephalogram n.; (b) an instrument for recording the electrical activity of the brain, electroencephalograph, n.

An instrument for recording the electrical activity of the brain.

An apparatus or instrument for recording the movement of the body caused by the contractions of the heart and flow of blood through the blood…

an apparatus for displaying or recording simultaneously the phonocardiogram and the electrocardiogram or sphygmogram.

An instrument for measuring electrical activity in a muscle. Also: an electromyogram.

An apparatus used for pupillography. Cf. pupillometer, n.

Medicine. An apparatus used to measure swaying of the body in the testing of balance and postural stability.

A pneumotachograph.

An instrument which measures and records the variations in the magnetic fields of the heart.