1. (of a plant ovule) completely straight with the micropyle at the apex

Antonym: campylotropous

• Protector of Boundaries
• protectoral
• protectorate
• protectorship
• Proteidae
• protein
• protein folding
• protein molecule
• proteinaceous
• proteinase
• proteinuria
• Proteles
• Proteles cristata
• proteolysis
• proteolytic
• proteolytic enzyme
• proteome
• proteomics
• proteose
• proteosome
• proteosome vaccine
• Proterochampsa
• proterozoic
• Proterozoic aeon
• Proterozoic eon