Origin and Etymology of ligula
First Known Use: circa 1760
Medical Definition of ligula
1 capitalized : a genus of tapeworms of the family Diphyllobothriidae that lack external evidence of segmentation, that as adults are usually extremely short-lived internal parasites of fish-eating birds but include one (L. intestinalis) found rarely in humans, and that develop almost to maturity in the body cavity of freshwater fishes
2: a larval tapeworm developing reproductive organs and living in the body cavity of a fish
Seen and Heard
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