Meanings
- not comparableliteratureSynonym of contraterrene (“made of or pertaining to antimatter”).
He gritted his teeth as another bolt of seetee matter exploded against the energy screen.
1960, John Glasby, Black Abyss, e-book edition, published 2014, →ISBN2 more examples
He followed her slowly into the empty hallway, announcing flatly, “I never made a seetee weapon. I don’t intend to start now.”
1949, Jack Williamson, “Seetee Shock”, in Astounding Science-Fiction, volume 42, number 4, page 149She inferred what happened: the atmosphere of Yuggoth was composed of SeeTee matter. ¶ SeeTee. CT. ContraTerrene. Antimatter.
2010, Richard A. Lupoff, “Nothing Personal”, in Darrell Schweitzer, editor, Cthulhu’s Reign, →ISBNSynonyms: contraterrene
Synonyms & antonyms
adjectiveSynonym of contraterrene (“made of or pertaining to antimatter”).
Origin
Spelling out of CT, initialism of contraterrene. Coined by American science fiction author Jack Williamson in 1942.
Full word history & related roots →Cite this entry
seetee. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/seetee
“seetee.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/seetee. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “seetee,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/seetee.
Source: seetee on Wiktionary, CC BY-SA 4.0.