noun, Mathematics.
the function that is zero for any number less than zero and that is 1 for any number greater than or equal to zero.

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  • Heavy

    [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 […]

  • Heavy-artillery

    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 […]

  • Heavy-bearded

    [hev-ee-beer-did] /ˈhɛv iˈbɪər dɪd/ adjective 1. having a thick or dark beard.

  • Heavy-bomber

    noun 1. a large plane capable of carrying heavy bomb loads for long distances, especially at high altitudes.

  • Heavy breather

    noun 1. a person who breathes stertorously or with difficulty 2. an anonymous telephone caller who imitates such sounds, as being suggestive of sexual excitement noun phrase bodice-ripper (1970s+)

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