(informal) Self-referential; structured analogously (structured by relationships), but at a higher level.

Boundary marker. / (historical) Either of the conical columns at each end of an Ancient Roman circus.

(video games) Metagame; the most effective tactics and strategies used in a competitive video game in a given period of time.

(video games) Prominent in the metagame; effective and frequently used in competitive gameplay.

(informal) Metoidioplasty.

(anatomy and zoology) Behind. / (botany and zoology) Later or subsequent. / (obsolete, architecture and zoology) Situated between two segments.

Transcending, encompassing.

(geology) Analogies and derivatives of metamorphism.

(pathology) Consequent on.

Meta Platforms, Inc., doing business as Meta, formerly called Facebook, Inc. (until late 2021); it is an American multinational technology conglomerate holding company that is the parent organization of Facebook, Instagram, and WhatsApp, among other subsidiaries.