[pahy-ruh-mey-nee-uh, -meyn-yuh] /ˌpaɪ rəˈmeɪ ni ə, -ˈmeɪn yə/
a compulsion to set things on fire.
(psychiatry) the uncontrollable impulse and practice of setting things on fire
1840, from pyro- “fire” + mania “madness, frenzy.” Used in German in the 1830s.
The propensity which leads an insane person to accomplish his purpose by burning, has been considered to merit particular notice, and to constitute a variety of monomania. Dr. Marc, of France, has published a memoir on the subject; he gives the name of pyromania to it, and considers that, like other insane propensities, it may be the result of instinct, or it may be the result of delusion–reasoning upon erroneous principles. [Alexander Morrison, M.D., “The Physiognomy of Mental Diseases,” London, 1840]
An older word for it was incendiarism.
pyromania py·ro·ma·ni·a (pī’rō-mā’nē-ə, -mān’yə)
An uncontrollable impulse to start fires.
py’ro·ma’ni·ac’ (-mā’nē-āk’) adj. & n.
An uncontrollable urge to set fires.
noun, Anatomy. 1. any of four tracts of descending motor fibers that extend in pairs down each side of the spinal column and function in voluntary movement. pyramidal tract n. A massive bundle of fibers that originates from the motor cortex and the postcentral gyrus and emerges on the ventral surface of the medulla oblongata. […]
[pahy-ruh-man-see] /ˈpaɪ rəˌmæn si/ noun 1. divination by fire, or by forms appearing in fire. /ˈpaɪrəʊˌmænsɪ/ noun 1. divination by fire or flames
[pahy-rom-i-ter] /paɪˈrɒm ɪ tər/ noun 1. an apparatus for measuring high temperatures that uses the radiation emitted by a hot body as a basis for measurement. /paɪˈrɒmɪtə/ noun 1. an instrument for measuring high temperatures, esp by measuring the brightness (optical pyrometer) or total quantity (radiation pyrometer) of the radiation produced by the source. Other […]
[pahy-ruh-met-l-ur-jee] /ˌpaɪ rəˈmɛt lˌɜr dʒi/ noun 1. the process or technique of refining ores with heat so as to accelerate chemical reactions or to melt the metallic or nonmetallic content. /ˌpaɪrəʊmɛˈtælədʒɪ; -ˈmɛtəˌlɜːdʒɪ/ noun 1. the branch of metallurgy involving processes performed at high temperatures, including sintering, roasting, smelting, casting, refining, alloying, and heat treatment