fiddleback
/ˈfɪdəlbæk/Definitions
1. noun
A type of moiré pattern, often seen on fabrics, caused by a slight mismatch in the weave of two different threads.
“The dress featured a beautiful fiddleback pattern on its hem.”
2. noun
A type of horse saddle, characterized by a prominent pommel and cantle.
“The fiddleback saddle was designed for long-distance riding.”