A proportion used in determining the dimensional relationship of a representation to that which it represents: a world map with a scale of 1:4,560,000. b. A calibrated line, as on a map or an architectural plan, indicating such a proportion.
Yttria (yttrium oxide, Y 2 O 3), was discovered by Johann Gadolin in 1794 in a mineral called gadolinite from Ytterby. Ytterby is the site of a quarry in Sweden which contains many unusual minerals containing erbium, terbium, and ytterbium as well as yttrium.
General Commentdefinition of Gematria or gimatria (Rabbinic Hebrew ×××××¨×× gÄmaá¹­riyÄ), is a system of assigning numerical value to an alphabet. The word Gematria is believed to have been formed from a metathesis of the Greek word grammateia (play upon letters), from gramma (letter) and literally means 'that which is written'[1]. It is extant in English since the 17th century from translations of works by Giovanni Pico della Mirandola.