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In the context of healthcare in the United States, a pre-existing condition is a medical condition that started before a person's health insurance went into effect. Before 2014, some insurance policies would not cover expenses due to pre-existing conditions. These exclusions by the insurance industry were meant to cope with adverse selection by ...
acronym noun. ac·ro·nym | \ˈa-krə-ˌnim\. Definition of acronym. : a word (such as NATO, radar, or laser) formed from the initial letter or letters of each of the successive parts or major parts of a compound term. also : an abbreviation (such as FBI) formed from initial letters : initialism. ^ "Acronym".
Backronym. A backronym is an acronym formed from an already existing word by expanding its letters into the words of a phrase. Backronyms may be invented with either serious or humorous intent, or they may be a type of false etymology or folk etymology. The word is a portmanteau of back and acronym. [1]
[1] [non-primary source needed] Schmidt argued that noticing is not a replacement or a synonym for attention or any other term previously existing, but rather its own function in second language acquisition. Susan Gass put forth a suggestion of a second noticing process. In this case, learners notice the gaps between their knowledge of the ...
Synonym (taxonomy) The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. [1] For example, Linnaeus was the first to give a scientific name (under the currently used system of ...
Pre-existence. Pre-existence, preexistence, beforelife, or premortal existence, is the belief that each individual human soul existed before mortal conception, and at some point before birth enters or is placed into the body. Concepts of pre-existence can encompass either the belief that the soul came into existence at some time prior to ...
Atavism. Early embryos of various species display some ancestral features, like the tail on this human embryo. These features normally disappear in later development, but it may not happen if the animal has an atavism. [1][2] In biology, an atavism is a modification of a biological structure whereby an ancestral genetic trait reappears after ...
In biology, cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells. Cells are the basic unit of structure in all living organisms and also the basic unit ...