Headbolt
noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A bolt that is used to secure the head of something (such as the cylinder head of an internal combustion engine).
"The headbolt heater consists of a hollow steel bolt containing an electric heating element. This device is designed to heat the water jacket and is applied to the engine head by replacing a headbolt."
Example
More examples"The headbolt heater consists of a hollow steel bolt containing an electric heating element. This device is designed to heat the water jacket and is applied to the engine head by replacing a headbolt."
Etymology
From head + bolt.
Related phrases
More for "headbolt"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.