Boltz·mann 
(bōltsmən, -män′), Ludwig Eduard 1844-1906.
(bōltsmən, -män′), Ludwig Eduard 1844-1906. Austrian physicist who applied statistical methods to physics, made major contributions to thermodynamics, and championed the theory that matter is composed of atoms.
- rock-ribbed
- Rock River
- rockrose
- rock salt
- rockshaft
- rockslide
- rock squirrel
- rock steady
- rock the boat
- rockumentary
- rock wallaby
- rockweed
- Rockwell
- Rockwell
- Rockwool
- rockwork
- "Rocky."
- rocky
- rocky
- Rocky Mountain goat
- Rocky Mountains
- Rocky Mountain sheep
- Rocky Mountain spotted fever
- Rocky Mountain States
- rococo