- A bolthead flask
- A round-bottomed glass flask having a lengthy neck; a bolthead.
- A chemical vessel with a round or oval human body and a long neck open at the top, offering the functions of digestion, evaporation, etc.; a cucurbit. Also known as bolt-head.
- In horticulture, a flask-like glass employed to shelter plants or plants from the weather or from extremes of cool as well as heat.
- Definition for "matrass"
- Sentence for "matrass"
- Synonym for "matrass"