'''Merb '''was a model–view–controller web framework in Ruby, notable as a precursor to Rails 3. It brought increased focus on speed and modularity to Rails 3. The name Merb is a contraction of “ Mongrel” and “ Erb.”
Merb, MERB, or variant may refer to:
- Merb, a model-view framework for the Ruby programming language
- MER-B, the Opportunity Mars rover
- Merbs, a fictional races from Storm Hawks, see List of Storm Hawks characters
- MERB, the stock-ticker symbol for Meralco
- merB is a bacterial gene that converts the organic form of mercury to the oxidized form of mercury, Hg(II)1.