from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A polymer of glucose and mannitol that is the main form of food storage of brown algae.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A glucan produced by some brown algae
laminar(ia) + -in.(American Heritage® Dictionary of the English Language, Fourth Edition)
For example, Rhodophyta (red algae) store energy in the form of floridean starch, whereas the Phaeophyceae (brown algae) store their energy in the form of laminarin.