A soft, colorful covering or seed-like appendage that grows around the seeds of certain plants, often brightly colored to attract animals who eat and disperse the seeds.
From Medieval Latin 'arillus,' possibly derived from Arabic 'arīl' or a similar Semitic root. The term entered botanical terminology in the 16th-17th centuries as scientists classified seed structures.
Arils are nature's brilliant marketing strategy—they're like candy wrappers plants evolved to get animals to carry their babies far away, which is why pomegranate seeds, nutmeg, and yew berries all have these delicious-looking covers!
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