Congenital abnormality and Colour blindness

Congenital abnormality noun - A defect that is present at birth.

Colour blindness and congenital abnormality are semantically related. In some cases you can replace phrase "Colour blindness" with "Congenital abnormality", this phrases are similar.

Colour blindness noun - Genetic inability to distinguish differences in hue.

Congenital abnormality and colour blindness are semantically related. Sometimes you can use "Congenital abnormality" instead a noun phrase "Colour blindness".