theine

[ thee-een, -in ]

noun

1. caffeine, especially in tea.

theine

/ ˈθiːiːn; -ɪn /

noun

1. another name for caffeine, esp when present in tea

Word History and Origins

Origin of theine¹

First recorded in 1830–40; from New Latin the(a) “tea” ( tea ) + -ine ²

Word History and Origins

Origin of theine¹

C19: from New Latin thea tea + -ine ²