natural covering

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a natural object that covers or envelops
- under a covering of dust
- the fox was flushed from its cover
• Syn:
covering, cover
• Derivationally related forms:
cover (for: covering)
• Hypernyms:
natural object
• Hyponyms:
scale, shell, test, body covering, sheath,
case, integument, blanket, mantle, crust, incrustation,
encrustation, envelope, hood, cap, indumentum, indument,
roof, eggshell, skim, slough, snowcap, vesture,
peridium, pericarp, seed vessel, perianth, chlamys, floral envelope,
perigone, perigonium, theca, sac, indusium, bark