QSO

Q10S1O1

noun

A radio-quiet quasar.

Less commonScrabble 12
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Meanings

nounQSO (plural QSOs)

plural QSOs

  1. abbreviationinitialismInitialism of quasi-stellar object (“a quasar”).
  2. datedA radio-quiet quasar.
verbQSO (third-person singular simple present QSOs, present participle QSOing, simple past and past participle QSOed)

present singular third person QSOs · participle present QSOing · participle past QSOed · past QSOed

  1. ambitransitiveslangbroadcastingTo 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

Synonyms & antonyms

Also see
quasar
Cite this entry
APA

QSO. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/QSO

MLA

“QSO.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/QSO. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “QSO,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/QSO.

Source: QSO on Wiktionary, CC BY-SA 4.0.