A scale used by surveyors for reducing chains and links to acres and rods.

plural of reducing scale

(ichthyology) One of the scales along the midside that spans from the rear edge of the gill cover to the base of the caudal fin of a fish, usually along a lateral line.

A scale used for model railways, varying from 1:148 to 1:160 but always having a gauge (distance between the rails) of 9 mm or 0.354 in.

plural of sample scale

An accurately balanced lever-scale for weighing very light objects.

unrefined paraffin

A scale for weighing in which the fulcra of the levers or beams are strained wires or strips acting by torsion.

plural of torsion scale

(astronomy) A nine-level numeric scale that measures the night sky's brightness of a particular location.