Correct spelling for the English word "Eretation" is [ɪɹɪtˈe͡ɪʃən], [ɪɹɪtˈeɪʃən], [ɪ_ɹ_ɪ_t_ˈeɪ_ʃ_ə_n] (IPA phonetic alphabet).
"Eretation" is not a term commonly found in dictionaries. However, if we assume that you are referring to "erection," we can provide a dictionary definition for this term.
"Erection" typically refers to the physiological process in which the penis becomes firm and enlarged, usually as a response to sexual arousal or stimulation. This term is mainly used in the context of male sexual biology, but similar physiological responses can occur in the clitoris of females as well.
When sexual excitement or stimulation occurs, certain nerve signals are sent to the penis, triggering the dilation of blood vessels. As a result, blood flow to the erectile tissues of the penis increases significantly, causing it to become rigid and erect. This physical erection allows for sexual intercourse to take place.
In a broader sense, "erection" can also refer to a building or structure being constructed or raised, such as the erection of a skyscraper or a tent. However, in the context of sexuality, "erection" specifically pertains to the physiological process related to sexual arousal in males.
Please note that if "eretation" refers to an alternative term or specific jargon in a certain field, a dictionary may not provide a definition as it may not be widely recognized or used.