papillary
adjective
pap·il·lary ˈpa-pə-ˌler-ē 
especially British
pə-ˈpi-lə-rē : of, relating to, being, or resembling a papilla or nipple-shaped projection, mass, or structure : marked by the presence of papillae
papillary thyroid carcinoma
tumors with papillary projections
Word History
Etymology
alteration (by substition of the suffix -ary entry 2) of papillar, borrowed from New Latin papillāris "of the nipple," from Latin papilla "nipple" + -āris -ar — more at papilla
First Known Use
1667, in the meaning defined above
Medical Definition
papillary
adjective
pap·il·lary
ˈpap-ə-ˌler-ē, especially British pə-ˈpil-ə-rē
: of, relating to, or resembling a papilla : papillose