1. (of a plant ovule) partly inverted; turned back 90 degrees on its stalk

Antonym: anatropous

• oleaceous
• oleaginous
• oleaginousness
• Oleales
• oleander
• oleander fern
• Oleandra
• Oleandra mollis
• Oleandra neriiformis
• Oleandraceae
• Olearia
• Olearia argophylla
• Olearia haastii
• oleaster
• oleaster family
• oleate
• olecranon
• olecranon process
• OLED
• olefin
• olefine
• oleic acid
• olein
• olent
• oleo