- Not entirely aquatic, as a wading bird.
- [= French <em>subaquatique.</em>] Situated or formed in or below the surface of the water; subaqueous.
- Being under water, or beneath the surface of water; adapted for use under water; submarine.
- Formed in or under water.
- Located or living under <xref>water</xref>; <xref>submarine</xref>.
- growing or remaining under water
- partially aquatic; living or growing partly on land and partly in water