To save this word, you'll need to log in.
ga·lac·tan | \ gə-ˈlak-tən 
, -ˌtan \
, -ˌtan \Medical Definition of galactan
: any of several polysaccharides of plant or animal origin (as agar) that yield galactose on hydrolysis
Comments on galactan
What made you want to look up galactan? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Name that Food Quiz
- Name these cookies!
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
- Name that Food Quiz
Test your knowledge of food and food words.
Take the quiz - Pass the Little Ribbons: A Pasta Word Quiz
Match the pasta with its meaning in Italian.
Take the quiz - Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz - Bee Cubed
Listen to the words and spell through all three levels.
Play the game
Share galactan