This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. The 15th letter of the Greek alphabet. See Table at alphabet.

n. the name for the 15th letter of Classical and Modern Greek. The 16th in Ancient and Old Greek.

n. Lit., the little, or short, O, o; the fifteenth letter of the Greek alphabet.

n. The fifteenth letter of the Greek alphaoet (O, o).

n. the 15th letter of the Greek alphabet

"(It's only later, during AC's "Catastrophe For Two Worlds" event, in an attempt to simplify the morass of rationales for superpowers, that the Prof's "primalised matter" is revealed to be none other than the proteanite toxic to Overman, but in an omicron-irradiated form harmless to the Man of the Future.)"

letter    letter of the alphabet    alphabetic character   

epsilon    omega    lambda    eta    Vega    phi    muon    gamma    nu    delta