Iron-deficiency anemia can cause fatigue (tiredness), shortness of breath, chest pain, and other symptoms. Severe iron-deficiency anemia can lead to heart problems, infections, problems with growth and development in children, and other complications.
Semantics is the study of meaning. It is a wide subject within the general study of language. An understanding of semantics is essential to the study of language acquisition (how language users acquire a sense of meaning, as speakers and writers, listeners and readers) and of language change (how meanings alter over time).
Define subject. subject synonyms, subject pronunciation, subject translation, English dictionary definition of subject. The subject in a sentence or clause is the person or thing doing, performing, or controlling the action of the verb. Only that which has the grammatical...