deer velvet; velvet antler
Refers to the soft, fuzzy skin-covered antler of a deer during its growth phase, before it hardens into bone. Used in traditional medicine contexts.
Deer velvet is sometimes used as an ingredient in traditional Chinese medicine.
Compound of 袋 (fukuro, 'bag') and 角 (tsuno, 'horn'), referring to the velvety covering that resembles a bag over the growing antler. The reading ふくろづの is a standard rendaku form.