Definition of greek numeral in English English dictionary
One of the Greek numerals. A symbol formed from one or more of the letters of the Greek alphabet which has been modified by the addition of a mark, thus: Δ' θ'. These are used to numerate monarchs, chapters, etc as Roman numerals are used in English
A system of numerals represented by letters of the Greek alphabet. These are used for special purposes, where in English Roman numerals might be used. The numerals are formed by the addition of a mark to the upper or lower case letter: Γ' δ' θ' In addition to the usual Greek letters three additional symbols are used: stigma (ϛ), koppa (ϟ) and sampi (ϡ); stigma (Ϛ or ϛ) may also be represented by ΣΤ' or στ'