WordReference Random House Unabridged Dictionary of American English © 2026
phyl•lo•ma•ni•a
(fil′ə mā′nē ə, -mān′yə),USA pronunciation n. [Bot.]
phyl′lo•ma′ni•ac′, adj.
- Botanythe production of leaves in abnormal numbers or places.
- phyllo- + -mania 1660–70