erections definition
Definition of 'erection'. Word Frequency. erection (ÉªrekÊÉn ) Word forms: plural erections. 1. countable noun. If a man has an erection, his penis is stiff, swollen, and sticking up because he is sexually aroused. 2. uncountable noun. The erection of something is the act of building it or placing it in an upright position.