Adverb
Subsequently in time; also, behind in position.
Source: Webster's dictionaryThe pouch opens anteriorly, and two lateral pockets extend posteriorly when young are present. Source: Internet
The uterus is mobile and moves posteriorly under the pressure of a full bladder, or anteriorly under the pressure of a full rectum. Source: Internet
The tentacular system connects the tentacles at the tip of the introvert to a ring canal at their base, from which a contractile vessel that runs along the esophagus and ends blindly posteriorly. Source: Internet
It innervates the proboscis and projects two stout trunks posteriorly which supply the body. Source: Internet
These are posteriorly directed and vary in number (usually one to three). Source: Internet
These unite and end in a penis which opens posteriorly. Source: Internet