The term posterior is a qualifying adjective that basically designates two similar but different characteristics. One of the meanings of this word is in reference to something that happens or that takes place after something else that happens first. Thus, for example, one meeting follows another when it takes place afterwards. On the other hand, the second typical meaning of this word is when we speak of the back of something, an object or an organism (in this sense, it is a common professional word in the field of medicine). Thus, posterior can also designate for example the region of the back because it is the back of the body.
To better understand the meaning of the subsequent word, we must say that it comes from Latin. A) Yes, posterioris In Latin it means "that which comes after, that which comes after". This helps us to understand both meanings mentioned above. The term is the opposite of the previous word, which also comes from Latin and means "what is before, what is before."
When we speak of something later we are always referring to something that happens after or that is behind, not immediately visible. According to the first meaning, the one that has to do with what happens after something else, we are talking about a temporal issue since it gives us the idea that both elements are not simultaneous but are ordered from the proximity that each one of them keeps towards the moment in which we are now.
In the second case, when we refer to the rear as something rear, we are designating everything that appears as the second part of something, not necessarily hidden in all cases. Examples of the latter is when the hind quarter of an animal is designated to the rear or which is behind the front of the back of the same. This does not mean that it is not visible but that it is behind the front where the first two legs are located (for example, in a dog).
