/jooh'beuh lay"tee; yooh'beuh lah"tay, -tee, jooh'-/ , n.
1. Also called Jubilate Sunday . the third Sunday after Easter: so called from the first word of the 65th Psalm in the Vulgate, which is used as the introit.
2. a musical setting of this psalm.
[ 1700-10; jubilate shout ye for joy ]