Definition of "sickle-shaped" []

• Shaped like a sickle; falcate in form; falciform; drepaniform.

The Century Dictionary (Public Domain)

• "I think fish with lunate tail fins (meaning crescent or sickle-shaped) such as tuna, various jacks, and marlin can exert more proportionately more force than those with broad tails such as bass or trout."
• "The November 1910 issue of the medical journal Archives of International Medicine (Arch Intern Med 1910: VI (5): 517-521) published a report by Dr. James B. Herrick titled, "Peculiar elongated and sickle-shaped red blood corpuscles in a case of severe anemia.""
• "New marrow produces healthy red blood cells to replace the sickle-shaped ones that can't squeeze through small blood vessels, the cause of the disease's pain, infections and life-threatening organ damage."