This is the 1078th most frequent Portuguese word.
deficiência
"Deficiência" means "deficiency" or "lack of something essential," and can also refer to a physical, mental, or functional impairment.
In this sentence, 'deficiência' refers to a medical or physical condition, specifically related to a limitation in visual ability.
A deficiência visual pode dificultar a leitura.
Visual impairment can make reading difficult.
Here, 'deficiência' is being used metaphorically to describe a lack or shortcoming in a process or system.
A deficiência no planejamento levou ao atraso do projeto.
The deficiency in planning led to the project delay.
In this context, 'deficiência' represents a lack or insufficiency of nutrients in the soil affecting its fertility.