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139 The naming of organisms (and plant communities)
-obionta: (bot., unoff.) suffix proposed for names in the rank of
subkingdom.
-obiota: (bot., unoff.) suffix proposed for names in the rank of kingdom.
objective: demonstrably true, not a matter of individual opinion, in contrast
to subjective.
objective synonym: (zool.) each of two or more synonyms that denote
nominal taxa with the same name-bearing type, or (in the case of
family- and genus-group taxa) that denote nominal taxa with namebearing
types whose own names are themselves objectively
synonymous; see homotypic synonym, nomenclatural synonym.
obligate synonym: a homotypic synonym (q.v.); a nomenclatural or
objective synonym.
oecotype: see ecotype.
off-type: (cult. pl.) a plant showing a non-typical phenotype or one that
differs from a ideotype; a rogue.
Official Correction: (zool.) a correction, issued by the Commission
(ICZN), of an error or omission in a previously published Opinion;
see also Direction.
Official Index: (zool.) an abbreviated title for any of the four indexes,
maintained and published by the Commission (ICZN), citing works
or names that have been rejected by rulings of the Commission. The
indexes are: Official Index of Rejected and Invalid Works in
Zoological Nomenclature, Official Index of Rejected and Invalid
Family-Group Names in Zoology, Official Index of Rejected and
Invalid Generic Names in Zoology, Official Index of Rejected and
Invalid Specific Names in Zoology). The Official Lists and Indexes
of Names and Works in Zoology (Melville RV; Smith JDD, eds;
1987) catalogues 9900 names and works on which the Commission
had ruled over the years 1895-1985; a supplement covering 1986-90
is also available.
Official List: (zool.) an abbreviated title for any of the four lists maintained
and published by the Commission (ICZN), citing available works or
names that have been ruled upon in the Opinions of the