Definition of "SST"

SST

noun
countable and uncountable, plural SSTs
1. (aviation) Initialism of supersonic transport.
  Quotations
  Here he found a selection of French crèmes fraîches at prices implying transport via SST.
  2001, Jonathan Franzen, The Corrections
2. (biochemistry) Abbreviation of somatostatin.
3. (meteorology) Initialism of sea surface temperature.
4. Initialism of socioemotional selectivity theory.
5. (psychotherapy) Initialism of single-session therapy.
  Quotations
  In and around 2016, a controversy arose when the CRPO began refusing grandparenting applications on the basis that an applicant's SST hours did not count towards fulfilling the grandparenting requirements. Specifically, the CRPO was taking the position that the 800 DCC hours requirement for grandparenting could not be satisfied with SST.
  2019 December, Karen Young, Joseph Jebreen, “Recognizing Single-Session Therapy as Psychotherapy”, in Journal of Systemic Therapies, volume 38, number 4, Guilford Publications, page 34
6. (Malaysia) Initialism of sales and service tax.
proper noun
1. (computing) Initialism of Shiva Smart Tunneling.
2. (space science, US, NASA) Initialism of Spitzer Space Telescope.