1. (Science: botany) see ligule.
2. (Science: zoology) The central process, or front edge, of the labium of insects. It sometimes serves as a tongue or proboscis, as in bees. A tongue-shaped lobe of the parapodia of annelids. See Parapodium.
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... http://upload.wikimedia.org/wikipedia/commons/9/94/Gray694.png In the first image there is shared labels such as 'ligula' but there are labels on the first diagram that the second one doesn't have and vice versa. I also expect this will be the same issue with other ...
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