1 (in the UK) Imperial Service Order.
2 International Organization for Standardization.
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iso-,
combining form. equal; alike: »
Isometric = metrically equal. Isosceles = having two sides equal. Isothermal = having to do with equal temperatures. Isotope = any of two or more elements having the same place (on the periodic table of elements).
Also, is- before vowels.╂[< Greek iso- < isos equal]
ISO (no periods) or I.S.O.,
International Standards Organization.
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abbr. International Organization for Standardization
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International Organization for Standardization (an organization established in 1946 to make the measurements used in science, industry and business standard throughout the world)
Word Origin:
Useful english dictionary. 2012.