QSO en · NOUN Meanings (abbreviation, alt-of, initialism) Initialism of quasi-stellar object (“a quasar”). alt of quasi-stellar object (dated) A radio-quiet quasar. Forms SpellingFeaturesLabelsSource QSOs Number=Plur lexicographic Relateds SSO · RLQ · PSO · RQQ · RIQ · YSO
QSO en · VERB Meanings (ambitransitive, slang) To communicate (with) by means of amateur radio. The basic award is issued when 500 countries have been successfully QSOed on the three bands. 1993, CQ: The Radio Amateurs' Journal, volume 49, numbers 7-12, page 66: Forms SpellingFeaturesLabelsSource QSOs Number=Sing, Person=3, Tense=Pres lexicographic QSOing Tense=Pres, VerbForm=Part lexicographic QSOed Tense=Past, VerbForm=Part lexicographic QSOed Tense=Past lexicographic