break seal

1. 1.

   a seal that must be broken when first used and cannot easily be resealed

   “it was stored in a tube with a break seal”

   Broaderseal

Questions about break seal

What does break seal mean?

break seal means "a seal that must be broken when first used and cannot easily be resealed".

Is break seal a common word?

break seal 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.