- metric linear unit - a linear unit of distance in metric terms
--1 is a kind of linear unit; metric unit, metric
--1 has particulars:femtometer, femtometre, fermi; picometer, picometre, micromicron; angstrom, angstrom unit, A; nanometer, nanometre, nm, millimicron, micromillimeter, micromillimetre; micron, micrometer; millimeter, millimetre, mm; centimeter, centimetre, cm; decimeter, decimetre, dm; meter, metre, m; decameter, dekameter, decametre, dekametre, dam, dkm; hectometer, hectometre, hm; kilometer, kilometre, km, klick; myriameter, myriametre, mym