b 3 i 1 o 1 m 3 a 1 s 1 s 1
7 letters · 11 points in Scrabble
Meaning
noun plant materials and animal waste used as fuel
noun the total mass of living matter in a given unit area
originFrom bio- (prefix denoting organic life) + mass (“matter, material”).
Etymology from Wiktionary, CC BY-SA 3.0