supplementary units

supplementary units

[¦səp·lə‚men·trē ′yü·nəts]
(physics)
Dimensionless units that are used along with base units to form derived units in the International System; this class contains only two, purely geometrical units: the radian and the steradian.
References in periodicals archive ?
It is using Datastream's EAM solution to automate the management of capital assets and parts inventory across nine mines, six supplementary units and a bonded warehouse.

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