ablator
/əˈbleɪtə/noun
Astronautics and Materials Sci. A protective surface layer (e.g. in a rocket engine) made of a material which ablates readily when heated and so reduces the transfer of external heat to the underlying material.
Origin
Mid 19th century (in an earlier sense). From ablate + -or.
- tearfulness
- tear gas
- tearing
- tear into
- tear-jerker
- tear-jerking
- tearless
- tearlessly
- tearlessness
- tear-like
- tear-off
- tear oneself away
- tear one's hair out
- tea room
- tear (or pull) someone/thing to pieces
- tea rose
- tear sheet
- tear someone limb from limb
- tear someone off a strip (or tear a strip off someone)
- tear someone/thing apart
- tear someone/thing down
- tear someone/thing to shreds
- tear-stained
- teary
- Teasdale, Sara