Definitions

1. adjective

relating to or resembling a casside, particularly in being smooth and waxy to the touch; said of leaves, especially those of certain species of oak or beech.

“The botanist noted the cassideous texture of the beech leaves, which gave them a unique appearance in the forest.”

2. noun

a type of smooth, waxy secretion on the leaves of certain trees, especially oaks or beeches.

“The cassideous coating on the oak leaves helped protect them from environmental stress.”