Two related senses, distinguished by compound. Animal:
麝 is the musk deer (Moschus). Subspecies names follow the pattern X +
麝:
林麝 (forest musk deer),
原麝 (Siberian musk deer),
马麝 (alpine musk deer). Substance:
麝香 is the famous musk — historically harvested for medicine and perfume, today mostly produced from farmed deer or synthesised. Compounds:
麝香酒 (musk-infused liquor),
人工麝香 (synthetic musk).