The condition of erectile tissue when filled with blood, which then becomes hard and unyielding; denoting especially this state of the penis. [L. erectio, fr. erigo, pp. erectus, to set up]
* * *
erec·tion i-'rek-shən n
1) the state marked by firm turgid form and erect position of a previously flaccid bodily part containing cavernous tissue when that tissue becomes dilated with blood
2) an occurrence of erection in the penis or clitoris
* * *
n.
the sexually active state of the penis, which becomes enlarged and rigid (due to the erectile tissue being swollen with blood) and capable of penetrating the vagina. The term is also applied to the clitoris in a state of sexual arousal.
* * *
erec·tion (ə-rekґshən) [L. erectio] the condition of being made rigid and elevated, such as in erectile tissue when filled with blood.Medical dictionary. 2011.