protopine

noun
pro·to·pine | \ ˈprōt-ə-ˌpēn \

Medical Definition of protopine 

: a crystalline alkaloid C20H19NO5 found in small quantities in opium and in many plants of the poppy family

Learn More about protopine

Comments on protopine

What made you want to look up protopine? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

by word of mouth

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!