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

See also: aquatic

• tobogganing
• tobogganist
• tobramycin
• toby
• toby fillpot jug
• toby jug
• tocainide
• decidable
• decide
• decided
• decidedly
• decider
• deciding
• decidua
• deciduous
• deciduous holly
• deciduous plant
• deciduous tooth
• decigram
• decigramme
• decile
• deciliter
• decilitre
• decimal
• decimal digit