What do we mean in MALNUTRITION AND MICCRONUTRIENT DEFICIENCY?

Malnutrition:

mal·nu·tri·tion
ˌmaln(y)o͞oˈtriSH(ə)n/
noun
lack of proper nutrition, caused by not having enough to eat, not eating enough of the right things, or being unable to use the food that one does eat.
synonyms: undernourishment, malnourishment, poor diet, inadequate diet, unhealthy diet, lack of food

Micronutrient deficiency is a lack of essential vitamins and minerals required in small amounts by the body for proper growth and development. Micronutrients include, but are not limited to: Vitamins A, B, C and D. Calcium. Folate.
Micronutrient Malnutrition - Orphan Nutrition
http://www.orphannutrition.org/understanding-malnutrition/micronutrient-malnutrition/