Ergocalciferol and Fat-soluble vitamin

Ergocalciferol noun - A fat-soluble vitamin that prevents rickets.

Fat-soluble vitamin and ergocalciferol are semantically related. In some cases you can use "Fat-soluble vitamin" instead a noun "Ergocalciferol".

Fat-soluble vitamin noun - Any vitamin that is soluble in fats.

Ergocalciferol and fat-soluble vitamin are semantically related. Sometimes you can replace term "Ergocalciferol" with "Fat-soluble vitamin", this terms are similar.