thinner(redirected from dilutent)
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A liquid, such as turpentine, mixed with paint or varnish to reduce its viscosity and make it easier to apply.
(Chemistry) (often plural, functioning as singular) a solvent, such as turpentine, added to paint or varnish to dilute it, reduce its opacity or viscosity, or increase its penetration into the ground
a volatile liquid, as turpentine, used to dilute paint, varnish, etc., to a desired consistency.
comparative of thin.