Glossary - J

Jacquard
A system of weaving which, because of a pattern-making mechanism of great versatility, permits the production of woven designs of considerable size. The Jacquard loom, derivation of the old draw boy hand loom, was credited to Joseph Marie Jacquard in France in the early 19th Century. On the Jacquard loom, because the threads are handled individually, anywhere from 100 to 15,000 threads may have independent weave action, allowing for complicated curvilinear designs.

Jumper
It's a pullover with long sleeves that is supposed to keep one warm and can be made of wool (or synthetic) or fleeced fabric.