sentence: Infertility is a deficient fertility.
sentences_before: As a measure, 'fertility rate' is the number of children born per couple, person or population. This is different to fecundity. In the English language, the term was originally applied only to females, but increasingly is applied to males as well, as common understanding of reproductive mechanisms increases and the importance of the male role is better known.
concept_name: infertility
headings: Fertility
categories: Biology Basic English 850 words