noun Date: 1682 a close-fitting cap, any of various mints (genus Scutellaria ) having a bell-shaped calyx that when inverted resembles a helmet, the upper portion of the skull ; calvarium
SKULLCAP
Meaning of SKULLCAP in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012