The definition of conjugal is relating to marriage or a relationship.(adjective)
An example of conjugal used as an adjective is the phrase "conjugal relations" which means a physical, sexual relationship between a married couple.
See conjugal in Webster's New World College Dictionary
Origin: L conjugalis < conjunx, conjux, husband or wife < com-, together + base akin to L jugum, yoke, jungere, join
See conjugal in American Heritage Dictionary 4
Origin: Latin coniugālis
Origin: , from coniūnx, coniug-, spouse
Origin: , from coniungere, to join in marriage; see conjoin.
Learn more about conjugal