‖ Système International
(sistɛm ɛ̃tɛrnasjɔnal)
Also (erron.) -nationale.
[Fr.]
In full Système International d'Unités. The International System of Units (see international a. 1 c).
| [1957: see international a. 1 c.] 1969 Symbols, Signs, & Abbreviations (R. Soc.) 21 (heading) The International System of Units (Système International d'Unités—SI). 1971 [see SI s.v. S 4 a]. 1972 Physics Bull. Aug. 461/3 If the precision of the measurement system can lead us to parts in 109, it might be possible to change the way in which the electrical units are defined in the Système Internationale. |