The mushroom Coprinopsis atramentaria, edible but poisonous when consumed with alcohol.

(geology) A carbonate unit immediately overlaying a glacial diamictite, found only in sediments deposited immediately after a Snowball Earth episode.

Any of various edible fungi in the genus Lactarius (the milk-caps), prized for their sweet taste.

Alternative spelling of milk-cap

Alternative form of ballcap

(obsolete) Alternative form of huffcap

A woman's tight-fitting cloth hat popular in the early twentieth century.

The topping of historic walls with turf and soil to reduce frost and water damage.

Synonym of liberty cap (“symbolic headwear”)

A flat-topped academic hat; a mortarboard.