Meta (prefix) in the context of "Metacognition"

Lexicography is the study of lexicons and the art of compiling dictionaries. It is divided into two separate academic disciplines:

• Practical lexicography is the compiling, writing, and editing of dictionaries.
• Theoretical lexicography is the scholarly study of semantic, orthographic, syntagmatic, and paradigmatic features of lexemes of the lexicon (vocabulary) of a language, developing theories of dictionary components and structures linking the data in dictionaries, the needs for information by users in specific types of situations, and how users may best access the data incorporated in printed and electronic dictionaries. This is sometimes referred to as "metalexicography" as it is concerned with the finished dictionary itself.

There is some disagreement on the definition of lexicology, as distinct from lexicography. Some use "lexicology" as a synonym for theoretical lexicography; others use it to mean a branch of linguistics pertaining to the inventory of words in a particular language.

Metapsychology (from meta- 'beyond, transcending' and psychology) is that aspect of a psychoanalytic theory that discusses the terms that are essential to it, but leaves aside or transcends the phenomena that the theory deals with. Psychology refers to the concrete conditions of the human psyche, metapsychology to psychology itself (cf. the comparison of metaphysics and physics).

Metaphase (from Ancient Greek μετα- (meta-) beyond, above, transcending and from Ancient Greek φάσις (phásis) 'appearance') is a stage of mitosis in the cell cycle in which chromosomes of eukaryotes are at their second-most condensed and coiled stage (they are at their most condensed in anaphase). These chromosomes, carrying genetic information, align in the equator of the cell between the spindle poles at the metaphase plate, before being separated into each of the two daughter nuclei. This alignment marks the beginning of metaphase. Metaphase accounts for approximately 4% of the cell cycle's duration.

In metaphase, microtubules from both duplicated centrosomes on opposite poles of the cell have completed attachment to kinetochores on condensed chromosomes. The centromeres of the chromosomes convene themselves on the metaphase plate, an imaginary line that is equidistant from the two spindle poles. This even alignment is due to the counterbalance of the pulling powers generated by the opposing kinetochore microtubules, analogous to a tug-of-war between two people of equal strength, ending with the destruction of B cyclin.

Meta-ethnicity is a level of commonality that is wider ("meta-") and more general (i.e., might differ on specifics) than ethnicity, but does not necessarily correspond to (and may actually transcend) nation or nationality. It is a relatively recent term (or neologism) occasionally used in academic literature or public discourse on ethnic studies. In colloquial discourse, it usually signifies a larger in-group of distinct ethnic groups who identify more closely with each other than they would with out-group ethnic groups. The groups within the in-group may be genetically and culturally related which reinforces the grouping.

An early use—possibly the first published in English—was an article in a 1984 USSR Academy of Sciences publication discussing identity in Asia and Africa.

A metaverse is a virtual world in which users interact while represented by avatars, typically in a 3D display, with the experience focused on social and economic connection.

The term metaverse originated in the 1992 science fiction novel Snow Crash as a portmanteau of "meta" and "universe". In Snow Crash, the metaverse is envisioned as a version of the Internet that is a single, universal, and immersive virtual world, facilitated by the use of virtual reality (VR) and augmented reality (AR) headsets.