Metrology

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9 domain-specific abstractions whose origin domain is Metrology.

• Degree (angle) — A plane-angle unit equal to one three-hundred-sixtieth of a full rotation.
• Femtometre — The SI unit of length equal to 10 to the minus 15 metres, conventionally symbolized fm.
• Japanese units of measurement — The traditional Japanese shakkanhō system of length, area, volume, mass, and related units standardized relative to metric definitions.
• Length — A one-dimensional measure of spatial extent or distance, expressed relative to a unit and specialized as height, width, path length or other geometry-dependent quantities.
• Mile — A family of historically related length units whose modern international form is exactly 1,609.344 metres, with qualified statute, nautical, survey and geographic variants requiring explicit convention.
• Ounce — A historically related family of customary units whose quantity kind and magnitude become determinate only after the applicable system and context are named.
• Physical quantity — A measurable property of a phenomenon, body or substance represented by a numerical value together with a measurement unit and quantity kind.
• Scale of temperature — A calibrated mapping from thermometric states to ordered numerical temperature values under a declared reference and unit.
• Siemens (unit) — The SI derived unit of electric conductance, admittance and susceptance, equal to one reciprocal ohm and symbolized S.