lunar caustic

1. 1.

   silver nitrate fused into sticks and formerly used as a caustic

   Broadersilver nitrate

Questions about lunar caustic

What does lunar caustic mean?

lunar caustic means "silver nitrate fused into sticks and formerly used as a caustic".

Is lunar caustic a common word?

lunar caustic is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.