cf. is an abbreviation for the Latin word confer, meaning "compare" or "consult." It is mainly used in common and statute law contexts, as well as in academic writing. Wikipedia does not have an article with this exact name. ... Wiktionary logo Wiktionary is a sister project to Wikipedia intended to be a free wiki dictionary (including thesaurus and lexicon) in every language. ... Cf or CF may stand for: Language Cf. ... Latin is an ancient Indo-European language originally spoken in the region around Rome called Latium. ...
It is sometimes used (primarily in dictionaries) to offer insight into the preceding word's etymology - that is, to suggest how one term obtained its particular naming convention (perhaps from another phrase). Etymology is the study of the origins of words. ...
For example, the phrase "Big Whack (cf. Big Bang)" suggests to the reader that the usage of the simplified moniker Big Whack, used in lieu of the more formal term giant impact theory, stems from an earlier, similar use of the colloquial phrase Big Bang to describe the more technically complete definition "the hypothesized point in time when the observed expansion of the universe began." Big Splash illustration The Big Splash The giant impact theory (or Big Splash or Big Whack; cf. ... According to the Big Bang theory, the Universe originated in an extremely dense and hot state (bottom). ... The Big Splash The giant impact theory (or Big Splash or Big Whack; cf. ...
CF is characterized by abnormal transport of chloride and sodium across the epithelium in all exocrine tissues, leading to thick viscous secretions in the lungs, pancreas, liver, intestine, and reproductive tract and to an increased salt content in sweat gland secretions.
CF is caused by mutations in a single large 250,000–base pair gene on chromosome 7 that encodes the CFTR protein.
The diagnosis of CF is occasionally suggested by the histologic appearance of an appendix removed from a patient with acute or recurrent/chronic abdominal pain, which is characterized by an increased number of goblet cells distended with mucus and eosinophilic cast of the crypts extruding into the lumen.
CF was among the first flash memory standards to compete with the earlier and larger PC Card Type I memory cards, and was originally built around Intel's NOR-based flash memory, though it switched over to NAND.
CF is among the oldest and most successful formats, and has held on to a niche in the professional camera market especially well.
CF devices are used in handheld and laptop computers (which may or may not take larger form-factor cards), digital cameras, and a wide variety of other devices, including desktop computers.
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