crochetage

Etymology
From the French word.

Noun

 * 1)  A pattern on an electrocardiogram with a fancied resemblance to the work of a crochet needle; it is a notch near the apex of the R wave in inferior limb leads of atrial septal defects of the ostium secundum type (patent ostium secundum, that is, patent foramen secundum).

Etymology
From.

Noun

 * 1)  a type of stitch in lacework, used to join separate pieces of lace