Furcular is a word that has limited synonyms. The word refers to the forked bone that can be found in the body of birds, which both the collarbone and the breastbone fuse into. One synonym of furcular that is often used is "wishbone," which is a popular term in North America. Another term that may be used as a synonym for furcular is "forked bone." Both of these terms refer to the same piece of anatomy in the body of birds, but are excellent alternatives for those who may need to use a different term from furcular.