straightedge

straight•edge n. [countable]

Buildinga bar or strip of wood, plastic, or metal having a long edge for use in drawing or testing straight lines, etc.

ˈstraight-ˌedge, adj.

of, using, or having a straight edge:a straight-edge razor.
advocating, or believing in, a life free from alcohol, cigarettes, drugs, and sex.

straight•edge n.

Buildinga bar or strip of wood, plastic, or metal having at least one long edge of sufficiently reliable straightness for use in drawing or testing straight lines, plane surfaces, etc.

straight-edge adj.

advocating abstinence from alcohol, cigarettes, drugs, and sex and sometimes advocating vegetarianism.

Collins Concise English Dictionary © HarperCollins Publishers::

straightedge /ˈstreɪtˌɛdʒ/ n

a stiff strip of wood or metal that has one edge straight and true and is used for ruling and testing straight lines

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