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Micro (Greek letter μ, mu, non-italic) is a unit prefix in the metric system denoting a factor of 10 −6 (one millionth). [1] It comes from the Greek word μικρός ( mikrós ), meaning "small".
micro- μ: 10 −9: 1×10 −9: One ... Zero –1 –1 Negative One −∞ undefined: Negative Infinity See also. Mathematics portal; Names of large numbers; Number ...
(the leading zero must be omitted); On Linux systems, under X11, when a Compose key has been enabled: Compose m u; under X11, with ibus version 1.5.19 (or higher) active, and a non-composing input method selected: The default keybinding for starting codepoint input is Ctrl+⇧ Shift+u.
Before the adoption of ronna and quetta for 10 27 and 10 30 and ronto and quecto for 10 −27 and 10 −30 in November 2022, many personal, and sometimes facetious, proposals for additional metric prefixes were formulated. [12] [13] The prefix bronto, as used in the term "brontobyte", has been used to represent anything from 10 15 to 10 27 ...
micro: μ: 10 −6: 0.000 001: 1873 ... The prefix is used in many words. General. Decathlon, a combined event in athletics consisting of ten track and field events.
micro-(μW) 1 × 10 −6: −30 dBm tech: approximate consumption of a quartz or mechanical wristwatch: 3 × 10 −6: −25 dBm astro: cosmic microwave background radiation per square meter 10 −5: 5 × 10 −5: −13 dBm biomed: sound power incident on a human eardrum at the threshold intensity for pain (500 mW/m 2). 10 −3: milli-(mW) 1.55 ...
Gambling games could be played for stakes (money) or "for love (of the game)", i.e., for zero stakes. The first such recorded usage quoted in the OED was in 1678. The shift in meaning from "zero stakes" to "zero score" is not an enormous conceptual leap, and the first recorded usage of the word "love" to mean "no score" is by Hoyle in 1742. [37]
The micrometre (Commonwealth English as used by the International Bureau of Weights and Measures; [1] SI symbol: μm) or micrometer (American English), also commonly known by the non-SI term micron, [2] is a unit of length in the International System of Units (SI) equalling 1 × 10 −6 metre (SI standard prefix "micro-" = 10 −6); that is, one millionth of a metre (or one thousandth of a ...