Definitions

1. noun

A type of flower, specifically the seed pod of the milkweed plant, particularly the genus Asclepias.

“The trigonon of the milkweed plant is a vital source of food for the monarch butterfly larvae.”

2. noun

An obsolete term for a trigonometric triangle, especially in relation to astronomy.

“In the 16th century, astronomers used trigonons to calculate the positions of celestial bodies.”