índice de dureza

Part Of Speech: noun

Definition: The quality of being hard.

Definition: An instance of this quality; hardship.

Definition: The quantity of calcium carbonate dissolved in water, usually expressed in parts per million (ppm).

Definition: The resistance to scratching, cutting, indentation or abrasion of a metal or other solid material.

Definition: The penetrating ability of electromagnetic radiation, such as x-rays; generally, the shorter the wavelength, the harder and more penetrating the radiation.

Definition: The measure of resistance to damage of a facility, equipment, installation, or telecommunications infrastructure when subjected to attack.

Phonetic: "/ˈnʌmbə/"

Part Of Speech: noun

Definition: An abstract entity used to describe quantity.

Example: Zero, one, −1, 2.5, and pi are all numbers.

Definition: A numeral: a symbol for a non-negative integer.

Example: The number 8 is usually made with a single stroke.

Definition: An element of one of several sets: natural numbers, integers, rational numbers, real numbers, complex numbers, and sometimes extensions such as hypercomplex numbers, etc.

Example: The equation e^{ipi}+1=0 includes the most important numbers: 1, 0, pi, i, and e.

Definition: (Followed by a numeral; used attributively) Indicating the position of something in a list or sequence. Abbreviations: No or No., no or no. (in each case, sometimes written with a superscript "o", like Nº or №). The symbol "#" is also used in this manner.

Example: Horse number 5 won the race.

Definition: Quantity.

Example: Any number of people can be reading from a given repository at a time.

Definition: A sequence of digits and letters used to register people, automobiles, and various other items.

Example: Her passport number is C01X864TN.

Definition: A telephone number.

Definition: (grammar) Of a word or phrase, the state of being singular, dual or plural, shown by inflection.

Example: Adjectives and nouns should agree in gender, number, and case.

Definition: (in the plural) Poetic metres; verses, rhymes.

Definition: A performance; especially, a single song or song and dance routine within a larger show.

Example: For his second number, he sang "The Moon Shines Bright".

Definition: A person.

Definition: An item of clothing, particularly a stylish one.

Definition: A marijuana cigarette, or joint; also, a quantity of marijuana bought form a dealer.

Definition: An issue of a periodical publication.

Example: the latest number of a magazine

Definition: A large amount, in contrast to a smaller amount; numerical preponderance.

Phonetic: "/ˈnʌmbə/"

Part Of Speech: verb

Definition: To label (items) with numbers; to assign numbers to (items).

Example: Number the baskets so that we can find them easily.

Definition: To total or count; to amount to.

Example: I don’t know how many books are in the library, but they must number in the thousands.