Production of sickle-shaped erythrocytes in the circulation, as in sickle cell anaemia. ... (05 Mar 2000) ... 
(sik´ling) the development of sickle cells in the blood.
Type: Term Pronunciation: sik′ling Definitions: 1. Production of sickle-shaped erythrocytes in the circulation, as in sickle cell anemia.
Sickling is a term used in ballet to describe a ballerina’s foot being incorrectly pointed, giving it a curved look. This is commonly caused by either poor form, or pointe shoes that are not the right fit.