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zero
- Main Entry:
- 1ze·ro
- Pronunciation:
-
\ˈzē-(ˌ)rō, ˈzir-(ˌ)ō\
- Function:
- noun
- Inflected Form(s):
- plural zeros also zeroes
- Etymology:
- French or Italian; French zéro, from Italian zero, from Medieval Latin zephirum, from Arabic ṣifr
- Date:
- 1598
1 a: the arithmetical symbol 0 or 0̸ denoting the absence of all magnitude or quantity b: additive identity; specifically : the number between the set of all negative numbers and the set of all positive numbers c: a value of an independent variable that makes a function equal to zero <+2 and −2 are zeros of f(x)=x2−4>2— see number table3 a (1): the point of departure in reckoning; specifically : the point from which the graduation of a scale (as of a thermometer) begins (2): the temperature represented by the zero mark on a thermometer b: the setting or adjustment of the sights of a firearm that causes it to shoot to point of aim at a desired range4: an insignificant person or thing : nonentity5 a: a state of total absence or neutrality b: the lowest point : nadir6: something arbitrarily or conveniently designated zero
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