Inherited disorder and Lactase deficiency

Inherited disorder noun - A disease or disorder that is inherited genetically.

Lactase deficiency and inherited disorder are semantically related. In some cases you can replace phrase "Lactase deficiency" with "Inherited disorder", this phrases are similar.

Lactase deficiency noun - Congenital disorder consisting of an inability to digest milk and milk products; absence or deficiency of lactase results in an inability to hydrolyze lactose.

Inherited disorder and lactase deficiency are semantically related. You can use "Inherited disorder" instead a noun phrase "Lactase deficiency".