Metis
the first wife of Jupiter, whom he was said to have devoured, after which Minerva was formed within his head.
METONIC (-ton'-) CYCLE, the cycle of the moon, a period of 19 solar years, after which the new and full moon fall on the same days of the year as they did 19 years before. This cycle was the invention of Meton, a celebrated Athenian philosopher, who flourished about 432 B. C. The Metonic cycle contained 235 lunar months, or 6,940 days.