pruinose

/ˈpruːɪnoʊs/
adjective
  1. Covered with a fine, white, powdery or waxy coating that looks like frost or bloom, often found on plants or insects.
    • The insect's pruinose wings shimmered with a frosty sheen.
    • The pruinose surface of the grape gave it a dusty blue appearance.
    • Many succulent plants have pruinose leaves that protect them from the sun.
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