What part of speech is ejaculation?

Ejaculation can be categorized as a noun.

Parts of speech

Inflections

Noun

What does ejaculation mean?

Definitions

Noun

ejaculation - the discharge of semen in males
ejaculation - an abrupt emphatic exclamation expressing emotion

Examples of ejaculation

#   Sentence  
1. noun However, it seems that just because it's a 'low risk day' doesn't mean that you won't get pregnant from intravaginal ejaculation.
2. noun There's nothing that ruins life as much as premature ejaculation.
3. noun There is no greater insult to life than premature ejaculation.
4. noun Can premature ejaculation be controlled?
Sentence  
noun
However, it seems that just because it's a 'low risk day' doesn't mean that you won't get pregnant from intravaginal ejaculation.
There's nothing that ruins life as much as premature ejaculation.
There is no greater insult to life than premature ejaculation.
Can premature ejaculation be controlled?