Definitions

1. noun

A term used in the 18th century to describe a type of grass or weed, particularly one with a flat, broad leaf.

“The botanist identified the invasive species as a blastide, native to a distant continent.”

2. noun (rare)

A variant spelling of blastidium, an old term for a type of fungus.

“The antiquarian bookshelf contained a rare volume on blastides, a fungal genus thought to be extinct.”