Or would it be "just another UK peculiarity"?
It's certainly not a UK peculiarity, and pilots tend to be more commonly aware of the concepts in countries which (a) get quite cold and (b) have large pointy bits. The UK doesn't really qualify on either criterion.
I don't have the document of ICAO definitions, but it does appear to be the term used, e.g. in PANS-OPS Vol I:
5.4.3.2 Descent below the fix crossing altitude/height should not be made prior to crossing the fix.
5.4.3.3 It is assumed that the aircraft altimeter reading on crossing the fix is correlated with the published altitude, allowing for altitude error and altimeter tolerances. See Part III.
Note.— Pressure altimeters are calibrated to indicate true altitude under ISA conditions. Any deviation from ISA will therefore result in an erroneous reading on the altimeter. If the temperature is higher than ISA, then the true altitude will be higher than the figure indicated by the altimeter. Similarly, the true altitude will be lower when the temperature is lower than ISA. The altimeter error may be significant in extremely cold temperatures.