Noun

1. an implement, having a semicircular blade and short handle, used for cutting long grass and cereal crops

Verb

1. To cut with a sickle
2. To deform (as with a red blood cell) into an abnormal crescent shape.
3. To assume an abnormal crescent shape. Used of red blood cells.

Adjective

1. Shaped like the blade of a sickle; crescent-shaped.

   a sickle moon

Related terms

• sickle cell anaemia, sickle-cell anaemia, sickle-cell anemia
• hammer and sickle