barrer

Definitions

1. One who or that which bars.
2. A non-SI unit of gas permeability.

Equivalents

Examples

“The worst merely bars some exceptions without looking at the proof at all. Hence the mystification when we have⟳ the proof on the one hand and the exceptions on the other. In the mind⟳ of such primitive exception-barrers, the proof and the exceptions exist⟳ in two completely separate⟳ compartments.”

CEFR level