roach
noun[C]
uk/rəʊtʃ/us/roʊtʃ/roachnoun[C](FISH)
pluralroach
aEuropeanfishthatlivesinfreshwater
（产于欧洲的）斜齿鳊，拟鲤
Arina_Bogachyova/iStock/Getty Images Plus/GettyImages
Freshwater fish
- American shad
- barramundi
- bream
- carp
- catfish
- chinook
- dorado
- eel
- electric eel
- elver
- fry
- lamprey
- minnow
- perch
- pike
- piranha
- salmon
- salmon trout
- tilapia
- trout
roachnoun[C](INSECT)
USpluralroaches
informalforcockroach
蟑螂（cockroach的非正式说法）
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Insect names
- anopheles
- ant
- aphid
- beastie
- bedbug
- daddy longlegs
- damselfly
- deathwatch beetle
- dragonfly
- dust mite
- housefly
- insect
- jigger
- ladybird
- lice
- silverfish
- sow bug
- spider mite
- stick insect
- swallowtail
roachnoun[C](CIGARETTE)
slangpluralroaches
apieceofcardor othermaterialused to make the endpartof ajoint(=cannabiscigarette)orroll-up(= hand-madecigarette), that thesmokeisbreathedthrough
（大麻烟卷的）烟蒂Specific types of drug
- addictive
- alprazolam
- amnesiac
- amyl nitrite
- anaphrodisiac
- anti-AIDS
- anti-aphrodisiac
- aphrodisiac
- barbiturate
- caffeine
- designer drug
- gas and air
- GHB
- hallucinogen
- khat
- legal high
- LSD
- MDMA
- psychedelic
- smack