caf·fein·ism 
(kă-fēnĭz′əm, kăfē-, kăfē-ə-)
(kă-fēnĭz′əm, kăfē-, kăfē-ə-)n.
A toxic condition marked by diarrhea, elevated blood pressure, rapid breathing, heart palpitations, and insomnia, caused by excessive ingestion of coffee and other caffeine-containing substances.
- quantum leap
- quantum mechanical
- quantum mechanics
- quantum number
- quantum physics
- quantum state
- quantum teleportation
- quantum theory
- quantum tunneling
- Quanzhou
- Quapaw
- Qu'Appelle River
- quarantinable
- quarantine
- quark
- quark
- quark-gluon plasma
- quark matter
- quark number
- quark star
- quarrel
- quarrel
- quarreler
- quarrelsome
- quarrier