Strong's #7529: retseph (pronounced reh'-tsef)
for 7565; a red-hot stone (for baking):--coal.
Brown-Driver-Briggs Hebrew Lexicon:
retseph
1) hot stone, glowing stone or coal, flame, firebolt, spark
Part of Speech: noun masculine
Relation: for H7565
Usage:
This word is used 1 times:
1 Kings 19:6: "And he looked, and, behold, there was a cake baked on the coals, and a cruse of water at his head. And he did eat"