turnsole
noun
turn·sole
ˈtərnˌsōl
plural -s
1
: any of several plants whose flowers or stems are supposed to follow the movement of the sun:
b
c
d
: a double-flowered tulip (Tulipa suaveolens) of southern Russia
2
: a European annual herb (Chrozophora tinctoria) of the family Euphorbiaceae the juice of which is turned blue by ammonia
3
a
: a purple dye obtained from the turnsole (see turnsole sense 2)
b
: litmus
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“Turnsole.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/turnsole. Accessed 28 Nov. 2024.
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