The Collaborative International Dictionary of English v.0.48:
Iso- \I"so-\, Is- \Is-\ [Gr. 'i`sos equal.]
A prefix or combining form, indicating identity, or equality;
the same numerical value; as in isopod, isomorphous,
(a) (Chem.) Applied to certain compounds having the same
composition but different properties; as in isocyanic.
(b) (Organic Chem.) Applied to compounds of certain isomeric
series in whose structure one carbon atom, at least, is
connected with three other carbon atoms; -- contrasted
with neo- and normal; as in isoparaffine; isopentane.
V.E.R.A. -- Virtual Entity of Relevant Acronyms (September 2014):
International Standards Organisation [International Organization
for Standardization] (org.)
The Free On-line Dictionary of Computing (18 March 2015):
International Organization for Standardization
International Organisation for Standardisation
(ISO) A voluntary, nontreaty organisation
founded in 1946, responsible for creating international
standards in many areas, including computers and
communications. Its members are the national standards
organisations of 89 countries, including the American
National Standards Institute.
ISO produced the OSI seven layer model for network
The term "ISO" is not actually an acronym for anything. It is
a pun on the Greek prefix "iso-", meaning "same". Some ISO
documents say ISO is not an acronym even though it is an
anagram of the initials of the organisation's name.