What's the difference between subaerial and subaqueous?

Subaerial

Definition:

(a.) Beneath the sky; in the open air; specifically (Geol.), taking place on the earth's surface, as opposed to subaqueous.

Example Sentences:

Definition:

(a.) Being under water, or beneath the surface of water; adapted for use under water; submarine; as, a subaqueous helmet.
(a.) Formed in or under water; as, subaqueous deposits.

Example Sentences:

(1) In order to assess the bleeding risk, it was investigated whether and how much subaqueous bleeding time (SBT) and aggregation inhibition (AGI) change under low-dose medication, and when these values return to normal after the end of administration.