1. A colourless crystalline alkaloid derived from tea leaves or made synthetically; used in medicine as a bronchial dilator
   - theophylline, Elixophyllin, Theobid

Type of: bronchodilator

• invocation
• invocatory
• invoice
• invoke
• involucrate
• involucre
• involuntarily
• involuntariness
• involuntary
• involuntary muscle
• involuntary trust
• involute
• involuted
• involution
• involutional depression
• involve
• involved
• involvement
• invulnerability
• invulnerable
• inward
• inward-developing
• inward-moving
• inwardly
• inwardness