mechanical instrument
61barrelorgan — barrel organ n. A mechanical instrument on which a tune is played by the action of a revolving cylinder fitted with pegs or pins that open pipe valves supplied by a bellows. * * * …
62dermatome — dermatomic /derr meuh tom ik/, dermatomal, adj. /derr meuh tohm /, n. 1. Anat. an area of skin that is supplied with the nerve fibers of a single, posterior, spinal root. 2. Surg. a mechanical instrument for cutting thin sections of skin for… …
63stropper — /strop euhr/, n. 1. a person who strops. 2. a mechanical instrument for honing double edged blades for safety razors. [1700 10; STROP + ER1] * * * …
64ellipsograph — noun A mechanical instrument used to trace out an ellipse. Applied to draw, cut, etc mathematically correct ellipses (rather than general ovals). Syn: trammel …
65polygraph — 1. noun a) A device which measures and records several physiological variables such as blood pressure, heart rate, respiration and skin conductivity while a series of questions is being asked to a subject, in an attempt to detect lies. b) An… …
66Aid, vibrotactile — A mechanical instrument that helps individuals who are hard of hearing to detect and interpret sound through their sense of touch. It is called a vibrotactile aid because it serves as an aid by permitting a person to feel the vibrations, in this… …
67Vibrotactile aid — A mechanical instrument that helps individuals who are deaf to detect and interpret sounds through their sense of touch. It is called a vibrotactile aid because it serves as an aid by permitting a person to feel the vibrations, in this case, of… …
68dermatome — /ˈdɜmətoʊm/ (say dermuhtohm) noun 1. Anatomy an area of the skin that is supplied with the nerve fibres of a single posterior, spinal root. 2. Surgery a mechanical instrument for cutting thin sections of skin for grafting. 3. Embryology the part… …
69polygraph — Also known as a lie detector, it is an electro mechanical instrument used to determine whether an examinee is truthfully answering questions. It simultaneously measures and records certain physiological changes in the human body which it is… …
70Lever frame — Mechanical railway signalling installations rely on lever frames for their operation to interlock the signals and points to allow the safe operation of trains in the area the signals control. Located in the signal box, the levers are operated by… …
