What is a circular structure either in plants or animals; as, a blood disk; germinal disk, etc called?
disk — (Biol.) A circular structure either in plants or animals; as, a blood disk; germinal disk, etc. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17 · Modified: 2026-07-17