
1) Bed bug 2) Bedbug 3) Cimex lectularius 4) Grain-eating bug 5) Hemipteran 6) Hemipteron 7) Hemipterous insect 
Found on 
https://www.crosswordclues.com/clue/chinch

1) Bedbug 
Found on 
https://www.crosswordclues.com/clue/chinch

• (n.) A bug (Blissus leucopterus), which, in the United States, is very destructive to grass, wheat, and other grains; -- also called chiniz, chinch bug, chink bug. It resembles the bedbug in its disgusting odor. • (n.) The bedbug (Cimex lectularius).
Found on 
http://thinkexist.com/dictionary/meaning/chinch/
 Chinch  noun
Chinch  noun [ Confer Spanish 
 chinche , from Latin 
 cimex .] 
 1.  (Zoology) The bedbug (
 Cimex lectularius ).  
 2.  (Zoology) A bug (
 Blissus leucopterus ), which, in the United States, is very destructive to grass, wheat, and other grains; -- also cal...
Found on 
http://www.encyclo.co.uk/webster/C/66

(loosely) a bedbug.
Found on 
https://www.infoplease.com/dictionary/chinch
  No exact match found.