A type of bend knot used to join nylon lines and cords, for its ability to maintain line strength and its non-slip quality. Also known as the blood knot.

An embroidery stitch in which the thread is wound around the needle one or more times, and the resulting curl is secured by drawing the needle back through the fabric very close to where it first emerged.

Calidris tenuirostris, a species of wading bird.

(mathematics) A mathematical knot in three-dimensional space that bounds a disc in four-dimensional space.

(mathematics) A particular knot with 11 crossings, related by mutation to the Kinoshita-Terasaka knot.

(nautical) Synonym of fire-escape knot

A stylised knot design used in Celtic artwork for decoration, although it can also be constructed as an actual knot built from cord.

A type of open loop knot often used to form a lariat.

A type of open loop knot often used to form a lariat, or for a bowstring end, as the name suggests.

(biochemistry) A protein structural motif containing three disulfide bridges formed from pairs of cysteine residues. The sections of polypeptide that occur between two of them form a loop through which a third disulfide bond passes, resulting in a rotaxane substructure. This motif stabilizes protein structure and is conserved in proteins across various species.