citrous
adjective
cit·rous
ˈsi‧trəs
1
: of or relating to the genus Citrus
a hardier strain of citrous trees
2
: of, relating to, devoted to the production of, or affecting plants or fruit of the genus Citrus
a citrous disease
an important citrous area
Word History
Etymology
in sense 1, from New Latin Citrus; in sense 2, from citrus + -ous
First Known Use
1658, in the meaning defined at sense 2