Rickets is a childhood disease that's caused by a lack of vitamin D. Rickets results in malformation of the bones. ... The word rickets is thought to be a version of the Greek word for "inflammation of the spine," rhachitis.

Is rickets singular or plural?

The noun rickets is uncountable. The plural form of rickets is also rickets.

What does rickets mean?

(RIH-kets) A condition in children in which bones become soft and deformed because they don't have enough calcium and phosphorus. It is caused by not having enough vitamin D in the diet or by not getting enough sunlight.