Added 9 October 2026
theophylline
/θi.əˈfɪl.iːn/ noun
noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about theophylline at Wordnik → Where our words come from →
- A colorless crystalline alkaloid derived from tea leaves or made synthetically; used in medicine as a bronchial dilator.
Origin
From Translingual Thea (“former genus name for the tea plant”) + Ancient Greek φύλλον (phúllon, “leaf”) + English -ine.
From Wiktionary, via Kaikki.org (CC BY-SA)