facilitate. To quicken, in the sense here considered, is to increase speed, move or cause to move more rapidly, as through more space or with, a greater number of motions in the same time. To accelerate is to increase the speed of action or of motion. A motion whose speed increases upon itself is said to be accelerated, as the motion of a falling body, which becomes swifter with every second of time.
Fiddlehead sculpture at the Saint John Arts Centre by sculptor Jim Boyd in Saint John, New Brunswick, Canada.Fiddleheads or fiddlehead greens are the furled fronds of a young fern, harvested for use as a vegetable.Left on the plant, each fiddlehead would unroll into a new frond (circinate vernation).See bracken poisoning). The fiddlehead resembles the curled ornamentation (called a scroll) on the end of a stringed instrument, such as a violin. It is also called a crozier, after the curved staff used by bishops, which has its origins in the shepherd's crook.
Fiddleheads are the new fronds of the ostrich fern (Matteuccia struthiopteris), and get their colloquial name because their coiled form looks like the head of a fiddle. These springtime delicacies have a taste reminiscent of asparagus, freeze well, and are easy to prepare, but they are not without their risks. Fiddleheads available in grocery stores are safe to eat, but care should be taken if you are foraging for these greens on your own. 2  Correctly identify a fiddlehead. 3  While there are many varieties of fern, the ostrich fern is the only one that is edible and safe to eat.