Dictionary

tornasol

/toɾnaˈsol/

noun, masculine/toɾnaˈsol/

litmus; iridescence

Related to sense 2. Calque of English turnsole.

noun, masculine/toɾnaˈsol/plural: tornasoles

sunflower

Synonyms: girasol

Verb-object compound, composed of torna (“to turn (originally)”) + sol (“sun”).