·adj Litmus.
II. Turnsole ·adj The Sunflower.
III. Turnsole ·adj A kind of spurge (Euphorbia Helioscopia).
IV. Turnsole ·adj The euphorbiaceous plant Chrozophora tinctoria.
V. Turnsole ·adj A purple dye obtained from the plant turnsole. ·see def. 1 (d).
VI. Turnsole ·adj A plant of the genus Heliotropium; heliotrope;
— so named because its flowers are supposed to turn toward the sun.