1. Growing or remaining under water
   - subaqueous, submerged, submersed, underwater 
2. Partially aquatic; living or growing partly on land and partly in water
   "a marginal subaquatic flora"
   - semiaquatic

See also: aquatic

• J. C. Maxwell
• J. Craig Ventner
• J. D. Salinger
• J. E. Johnston
• J. Edgar Hoover
• J. J. Hill
• J. K. Rowling
• J. M. Barrie
• J. M. Synge
• J. P. Morgan
• J. R. Firth
• J.R.R. Tolkien
• jab
• Jabalpur
• Jabat al-Tahrir al-Filistiniyyah
• jabber
• jabberer
• jabbering
• jabberwocky
• jabbing
• jabiru
• Jabiru mycteria
• jaboncillo
• jaborandi
• jabot