SI Prefixes and Units Multimeters return a result in SI (the standard scientific) units for voltage, current and resistance, which are volts (V), amps (A) and ohms (Ω), respectively. n. Abbr. Definition CIPM definition of the sievert. We may write h W = 169 000 mm = 16 900 cm = 169 m = 0.169 km using the millimeter (SI prefix milli, symbol m), centimeter (SI prefix centi, symbol c), or kilometer (SI prefix kilo, symbol k). Tera (1 trillion) comes from the Greek word teras or teratos, meaning "marvel, monster," and has been in use since approximately 1947. The meter is defined in terms of the speed of light and the second; definitions of the metric base units kilogram, ampere, kelvin, and candela also depend on the second. Below is a table of the most commonly used metric prefixes that can be added to the basic units of measurement. Milli-(symbol m) is a unit prefix in the metric system denoting a factor of one thousandth (10 −3).Proposed in 1793 and adopted in 1795, the prefix comes from the Latin mille, meaning "one thousand" (the Latin plural is milia).Since 1960, the prefix is part of the International System of Units (SI). A milliamp is a unit used to measure electrical current and is equal to one one-thousandth of an ampere. In the international system of units (SI units), electrical current is measured in amperes (or amps), and abbreviated as “A”. Definition - What does Milliamp (mA) mean? Example 1:: 10-6 kg = 1 mg (one milligram), but not 10-6 kg = 1 µkg (one microkilogram): Example 2:: Consider the earlier example of the height of the Washington Monument. The definition of a hectare is as follows: A hectare (symbol ha) is a metric unit of surface area, equal to 100 ares (the name is a contraction of the SI prefix hecto + are). The SI definition given by the International Committee for Weights and Measures (CIPM) says: "The quantity dose equivalent H is the product of the absorbed dose D of ionizing radiation and the dimensionless factor Q (quality factor) defined as a function of linear energy transfer by the ICRU" . Define milliliter. You use two probes to measure parts of the circuit, ports to insert the probes, and usually a dial or a selection of buttons to choose the mode. The only base unit whose definition does not depend on the second is the mole. mL or ml A unit of volume equal to one thousandth of a liter. The abbreviation for "ampere" is "A," and the abbreviation for "milliampere" is "mA." A milliamp (mA) is a unit of measurement for an electric current flowing through an electrical conductor and a measure of the rate of flow of electrons. milli- meaning: 1. However, the origin and history of peta with data measurement … milliliter synonyms, milliliter pronunciation, milliliter translation, English dictionary definition of milliliter. ››Definition: Millihectare. 0.001 or one thousandth of the stated unit: 2. one thousandth, used in units of measure: 3. a…. The metric system unit becquerel, a measure of radioactive decay, is measured in inverse seconds. Millicurie definition, a unit of radioactivity equal to one thousandth of a curie; 3.70 × 107 disintegrations per second. So 1 millihectare = 10-3 hectares.. The prefixes exa (1 quintillion) and peta (1 quadrillion) were added to the International System of Units in 1975. Abbreviation: mCi, mc See more. Learn more. The word "milliamp" is short for "milliampere." The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.. But adding milli-to “meter” creates “millimeter,” which means one thousandth of a meter. 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