psis

P3S1I1S1

A form of psi — The twenty-third letter of Classical and Modern Greek and the twenty-fifth letter of Old and Ancient Greek.

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Meanings

psis1

noun
  1. pluralplural of psi

PSIS2

nounPSIS (plural PSISs or PSISes)

plural PSISs · plural PSISes

  1. abbreviationinitialismanatomyInitialism of posterior superior iliac spine.

Rhymes & wordplay

Anagrams

piss
Cite this entry
APA

psis. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/psis

MLA

“psis.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/psis. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “psis,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/psis.

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