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.
: one of the young unfurling fronds of some ferns that are often eaten as greens âcalled also fiddlehead fern.See fiddlehead defined for kids. ADVERTISEMENT. one of the young unfurling fronds of some ferns that are often eaten as greens âcalled also fiddlehead fern.
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.