Definition of dominical:
(adj) :
(archaic) Of or pertaining to the Lord's Day, Sunday.
(adj) :
Of or pertaining to Jesus Christ as Lord.
(n) :
A person who keeps Sunday as a day of rest, but does not regard it as representing the Sabbath of the Old Testament of the Bible.
(n) :
(obsolete) The Lord's Day; Sunday.
(adj) :
(historical) Of or pertaining to the ancient system of dominical letters, used for determining Sundays (particularly Easter Sunday) in any given year.
(n) :
(British, historical) A payment legally due from a parishioner to the parish, because the parishioner's house was built on land, ownership of which would have originally obliged the landowner to pay a tithe to the parish.