calix

noun
  1. the sepals of a flower, typically forming a whorl that encloses the petals and forms a protective
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calx

noun

a powdery metallic oxide formed when an ore or mineral has been heated.

late Middle English: from... Read more »

calyx

noun
  1. The outermost whorl of flower parts, comprising the sepals, which covers and protects the petals
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