WordNet sense 1 (shed at an early stage of development):

caducous

WordNet sense 2 (pour out in drops or small quantities or as if in drops or small quantities):

spill, pour forth

WordNet sense 3 (cause or allow (a solid substance) to flow or run out or over):

disgorge

WordNet sense 4 (get rid of):

cast, drop, throw, cast off, shake off, throw off

WordNet sense 5 (cast off hair, skin, horn, or feathers):

molt, slough, exuviate, moult, slough