HM stands for Heavy Metal
HM stands for Hidden Machine.
hm
Her majesty's- he or she is a servant of the crown in the UK.
hidden machine
The metric unit abbreviation hm stands for hectometre. A hectometre is equal to 100 metres.
Cascading Style Sheets
Cascading Style Sheets
its either hectometer or hectameter.
Hectometers, or 100 meters. Hope this helped!
Linin. A closet for towels and sheets.
Possibly Thunderstruck - AC/DC. Not an orchestra, but your description only bring this to mind.