Definitions of boiler

1. sealed vessel where water is converted to steam

2. A vessel in which any thing is boiled.

3. A strong metallic vessel, usually of wrought iron plates riveted together, or a composite structure variously formed, in which steam is generated for driving engines, or for heating, cooking, or other purposes.

4. A sunken reef; esp., a coral reef on which the sea breaks heavily.

5. A strong metallic vessel, in which steam is produced for driving engines or for other purposes; a tank for storing hot water; a vessel in which a liquid is heated.

6. One who boils: that in which anything is boiled.

7. A vessel for boiling.

8. A vessel in which anything is boiled; a vessel in which the steam is generated.