a tough string or thread usually made from the dried intestines of sheep, horses, etc. and used for surgical sutures, for stringing tennis rackets, etc.
Origin of catgutparallel with Dutch kattedarm, but uncertain or unknown; perhaps altered by associated, association with cat ; from kit gut ; from obsolete kit, fiddle (; from uncertain or unknown; perhaps cithara) + gut
A tough thin cord made from the treated and stretched intestines of certain animals, especially sheep, and used for stringing musical instruments and tennis rackets and for surgical ligatures.
(countable and uncountable, plural catguts)