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allelomorph
allelopathy
allelotoxin
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Allen
Allen key
Allen screw
Allen wrench
allene
Allentown
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Allen wrench

Al·len wrench (plural Al·len wrench·es)


noun 
Definition:
 
North America L-shaped wrench: a tool in the form of an L-shaped rod, hexagonal in cross section, made in different sizes to turn corresponding sizes of Allen screws

[See Allen screw]
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