computus noun2 •The calculation of the date of Easter in the Christian calendar.An elaborate bundle of techniques called computus therefore developed around Easter calculations. Computus formed the centerpiece of “scientific” education in the monasteries. — 2008 •(historical) A book of tables for calculating dates of astronomical events and moveable feasts.This computus also contains only one completed Plinian diagram, that for the planetary harmonic intervals. — 1987 formscomputi
