2 Zoology Relating to an osculum.
- Few long marginalia projecting from the oscular margin may belong to an oscular spicule rim.
- Circular parietal openings increase in size from the base to the oscular region.
- The sponge's basal part, oscular part and side part occur at different levels within the mud layers, which might have resulted from rapid burial.
Definition of oscular in:
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