Megafan
noun, slang
noun, slang ·Moderate ·College level
Definitions
Noun
- 1 A very large mass of clastic sediment deposited by a laterally mobile river system that fans out from the outlet from a large mountainous drainage network.
"The dynamics of river systems in megafan environments may strongly influence the fragmentation and reconnection of riverine habitats, and therefore by implication, the diversification and distribution of freshwater organisms."
- 2 An obsessively enthusiastic fan. informal
"Nathan Kaufman, 25, another Radiohead megafan, said of the plan, “I got geeked about it immediately.”"
Example
More examples"The dynamics of river systems in megafan environments may strongly influence the fragmentation and reconnection of riverine habitats, and therefore by implication, the diversification and distribution of freshwater organisms."
Etymology
From mega- + fan.
More for "megafan"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.