Sŭb'a-quăt'ic or Sŭb-ā'que-oŭs, a.
a. [Prefix sub and aquatic or aqueous, q. v.] 1. Being under water, or beneath the surface of water. 2. (Geol.) Formed in or under water; as, sub-aqueous deposits.
a. [Prefix sub and aquatic or aqueous, q. v.] 1. Being under water, or beneath the surface of water. 2. (Geol.) Formed in or under water; as, sub-aqueous deposits.