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Definition of Roach
1. Verb. Comb (hair) into a roach.
2. Noun. A roll of hair brushed back from the forehead.
3. Verb. Cut the mane off (a horse).
4. Noun. The butt of a marijuana cigarette.
5. Noun. Street names for flunitrazepan.
Generic synonyms: Flunitrazepan, Rohypnol
6. Noun. Any of numerous chiefly nocturnal insects; some are domestic pests.
Generic synonyms: Dictyopterous Insect
Group relationships: Blattaria, Blattodea, Suborder Blattaria, Suborder Blattodea
Specialized synonyms: Asiatic Cockroach, Blackbeetle, Blatta Orientalis, Oriental Cockroach, Oriental Roach, American Cockroach, Periplaneta Americana, Australian Cockroach, Periplaneta Australasiae, Blattella Germanica, Croton Bug, Crotonbug, German Cockroach, Water Bug, Giant Cockroach
7. Noun. European freshwater food fish having a greenish back.
Generic synonyms: Cyprinid, Cyprinid Fish
Group relationships: Genus Rutilus, Rutilus
Definition of Roach
1. n. A cockroach.
2. n. A European fresh-water fish of the Carp family (Leuciscus rutilus). It is silver-white, with a greenish back.
3. v. t. To cause to arch.
Definition of Roach
1. Noun. A small freshwater fish in the carp family (''Cyprinidae''), (spelink Rutilus rutilus). ¹
2. Noun. (US slang smoking) A butt of a marijuana cigarette. ¹
3. Noun. (UK slang smoking) The filter of a rolled cigarette or joint, made from card or paper. ¹
4. Noun. (American English) a cockroach. ¹
5. Noun. (nautical) A curve in the bottom of a sail to prevent it snagging deck equipment. ¹
¹ Source: wiktionary.com
Definition of Roach
1. to cause to arch [v -ED, -ING, -ES]
Medical Definition of Roach
1.