heat ray

1. 1.

   a ray that produces a thermal effect

   Broaderbeam

   Narrowerinfrared ray

Questions about heat ray

What does heat ray mean?

heat ray means "a ray that produces a thermal effect".

Is heat ray a common word?

heat ray is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.