1. Growing or remaining under water
   "viewing subaqueous fauna from a glass-bottomed boat"
   - subaquatic, submerged, submersed, underwater

See also: aquatic

• medley
• MEDLINE
• medroxyprogesterone
• medulla
• medulla oblongata
• medulla spinalis
• medullary
• medullary ray
• medullary sheath
• medullated
• medullated nerve fiber
• medullated nerve fibre
• medusa
• medusa's head
• medusan
• medusoid
• meed
• meek
• meekly
• meekness
• meerestone
• meerkat
• meerschaum
• meet
• meet up with