trefoil knot

American  

noun

1. a knot having the form of a trefoil.

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Example Sentences

In previous work, Leigh and his team created a self-tying trefoil knot and used nature as the inspiration for a synthetic version of the ribosome.

From Scientific American

She knitted along the knotted needles and ended up with a knitted trefoil knot, the simplest knot you can tie.

From Scientific American

A three-dimensional trefoil knot inspired by an ancient emblem of the three forces of nature — earth, air and water — is a smart choice as the übersymbol of Sustainism.

From New York Times