a colorless, crystalline alkaloid, CHNOHO, extracted from tea leaves or prepared synthetically: an isomer of theobromine
Origin of theophylline; from Modern Latin thea, tea (infl. by Gr, goddess, as being a divine herb, but ; from source of tea) + -phyll + -ine
A colorless crystalline alkaloid, C7H8N4O2, derived from tea leaves or made synthetically, used as a bronchodilator primarily to treat asthma and chronic obstructive pulmonary disease.
Origin of theophyllineNew Latin thea, the tea plant (ultimately from Dutch thee); see tea + phyll(o)– + –ine2.
(countable and uncountable, plural theophyllines)
- (pharmacology) Methylxanthine drug used in therapy for respiratory diseases such as COPD or asthma.