[hev-ee-sahyd] /ˈhɛv iˌsaɪd/
Oliver, 1850–1925, English physicist.
Oliver. 1850–1925, English physicist. Independently of Kennelly, he predicted (1902) the existence of an ionized gaseous layer in the upper atmosphere (the Heaviside layer); he also contributed to telegraphy
noun 1. . noun 1. the E region of the ionosphere See E region Heaviside layer (hěv’ē-sīd’) See E region.
noun, Mathematics. 1. the function that is zero for any number less than zero and that is 1 for any number greater than or equal to zero.
[hev-ee] /ˈhɛv i/ adjective, heavier, heaviest. 1. of great weight; hard to lift or carry: a heavy load. 2. of great amount, quantity, or size; extremely large; massive: a heavy vote; a heavy snowfall. 3. of great force, intensity, turbulence, etc.: a heavy sea. 4. of more than the usual or average weight: a heavy […]
noun 1. guns and howitzers of large caliber. 2. guns and howitzers of 155-mm caliber and larger. Compare (def 2), . noun phrase The most impressive and persuasive arguments, evidence, persons, etc, available: The Republicans are rolling out their heaviest artillery for this debate/ Against these big critics’ big guns I offered the author some […]