[ˈnektən]
自游生物：活泼游动的水生生物的总称，与浮游生物相对- Tetrahymenina
- tetraiodophenolphthalein
- tetraiodophthalein sodium
- tetraiodothyronine
- tetralogy
- tetramazia
- Tetrameres
- tetrameric
- tetramethyl
- tetramethylammonium hydroxide
- tetramethylenediamine
- tetramethylputrescine
- tetramine
- tetramisole hydrochloride
- Tetramitus mesnili
- tetramylose
- tetranitrol
- tetranophthalmos
- tetranopsia
- tetranucleotide
- Tetranychus
- Tetraodontoidea
- tetraodontoxin
- tetraodontoxism
- tetraotus