[adjective]If a person is described as erect it means that they stand with their back and neck very straight.He's very tall and erect for his 78 years.When a part of the body, esp. soft tissue, is erect, it is harder and bigger than usual, often pointing out or up.an erect peniserect nipples
ERECT
Meaning of ERECT in English
Cambridge English vocab. Кембриджский английский словарь. 2012