lichen spinulosus
noun
lichen spi·nu·lo·sus
| \ -ˌspin-yə-ˈlō-səs
, -ˌspīn-
\
, -ˌspīn-
\
Medical Definition of lichen spinulosus
: a skin disease characterized by the eruption of follicular papules from which keratotic spines protrude