the·in·ism, theism (thē'i-nizm; thē'izm, tē'-),
Chronic poisoning resulting from immoderate levels of tea-drinking, marked by palpitation, insomnia, nervousness, headache, and dyspepsia.
[Mod. L. thea, tea]
theaism/thea·ism/ (the´ah-izm) caffeinism resulting from ingestion of excessive quantities of tea.
theaism(thē′ă-ĭzm) [L. thea, tea, + Gr. -ismos, condition]
Chronic caffeine poisoning from excessive tea drinking.