turnsole /tûrnˈsōl/

1. A plant whose flowers are supposed to face the sun, as heliotrope or the euphorbiaceous Chrozophora tinctoria
2. A deep-purple dye obtained from the latter
3. Litmus

• orthopsychiatric
• orthopsychiatrist
• orthopsychiatrists
• orthopsychiatry
• orthoptera
• Orthoptera
• orthopteran
• orthopterans
• orthopterist
• orthopterists
• orthopteroid
• orthopterologist
• orthopterology
• orthopteron
• orthopterous
• orthoptic
• orthoptics
• orthoptist
• orthoptists
• orthorexia
• orthorhombic
• orthos
• orthoscopic
• orthoses
• orthosilicate