PQ/CMC Units of Measure Terminology HL7 FHIR v5.0.0 R5 Unit of Measure Terminology Meter CDISC ICH HL7 Quantitative Concept Meter C41139 meter C0475209 A meter is defined as the length of the path traveled by light in a vacuum during a time interval of 1/299 792 458 of a second and is equal to 1.093 61 yards.(NCI) A unit of linear measure in the metric system, one of the seven base units of the International System of Units (Systeme International d'Unites, SI). A meter is defined as the length of the path traveled by light in a vacuum during a time interval of 1/299 792 458 of a second and is equal to 1.093 61 yards. Meter m Meter FDA Base Unit of International System of Units Unit of Length Clinical Data Interchange Standards Consortium Terminology CDISC SDTM Unit for Vital Sign Result Terminology CDISC SDTM Terminology ICH Unit of Measure Terminology HL7 Unit of Measure Terminology CDISC SDTM Unit of Measure Terminology CDISC SEND Terminology