plural of naphthol orange

(entomology) A species of satyrine butterfly with orange wings, Hypocysta adiante, endemic to northern Australia.

plural of orange ringlet

plural of orang-otang

Dated form of orangutan.

Dated form of orangutan.

plural of orang-hutan

A hue of orange used to set objects apart from their surroundings, particularly in complementary contrast to the azure color of the sky; commonly used in the US for traffic cones and other construction zone marking.

plural of safety orange

A publication of the United States Food and Drug Administration (FDA) that identifies drug products approved on the basis of safety and effectiveness.