trefoil knot

短语

词形变化

trefoil knots 复数 trefoil knots

别名

trefoil

释义与例句

n.
  1. 1.

    A knot formed by joining the two loose ends of a overhand knot to form a knotted loop; the simplest non-trivial knot.

    数学

词源

From trefoil + knot, from being a knot theory knot, where its simplest symmetrical configuration appears like a trefoil. File:Trefoil-non-3-symm.svg|A trefoil knot lacking three-fold symmetry File:Tricoloring.png|The trefoil knot with each lobe highlighted File:Trefoil Knot.gif|Trefoil knot

来源：wiktionary