define precursor
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- Meaning of “precursor” in the English Dictionary. See all translations. uk ​ /ˌpriːˈkɜː.sər/ us ​ /ˌpriːˈkɝː.sɚ/ formal. › something that happened or existed before another thing, especially if it either developed into it or had an influence on it: Sulphur dioxide is the main precursor of acid rain. Biological research has often been a precursor to medical breakthroughs.
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What is Cholesterol? Cholesterol as a precursor. Cholesterol is a major precursor in the synthesis of vitamin D, steroid hormones and sex hormones. Examples of the various steroid hormones include corticosteroids such as aldosterone (a mineralcorticoid), cortisol (a glucocorticoid) and cortisone.
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Definitions &Translations Definitions for predecessorˈprɛd əˌsɛs ər; esp. predecessor(noun) one who precedes you in time (as in holding a position or office) harbinger, forerunner, predecessor, herald, precursor(noun) something that precedes and indicates the approach of something or someone. predecessor(Noun)
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source source applies more often to the point where something springs into being. the source of the Nile; the source of recurrent trouble; inception stresses the beginning of something without implying causes. the business has been a success since its inception; root suggests a first, ultimate, or fundamental source often not easily discerned.
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ancestor The definition of an ancestor is a person or creature from whom one is descended or who lived in the past, or a person who came before. Your great great-grandfather is an example of an ancestor.
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source Define source: a generative force : cause; a point of origin or procurement : beginning — source in a sentence a generative force : cause; a point of origin or procurement : beginning; one that initiates : author; also : prototype, model…
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Ancestor An ancestor or forebear is a parent or the parent of an ancestor. Ancestor is any person from whom one is descended. In law the person from whom an estate has been inherited.. Two individuals have a genetic relationship if one is the ancestor of the other, or if they share a common ancestor.
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source origin, source, inception, root mean the point at which something begins its course or existence. origin applies to the things or persons from which something is ultimately derived and often to the causes operating before the thing itself comes into being. an investigation into the origin of baseball
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- Definition of prologue. 1  1 : the preface or introduction to a literary work. 2  2a : a speech often in verse addressed to the audience by an actor at the beginning of a playb : the actor speaking such a prologue. 3  3 : an introductory or preceding event or development.
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prequel A book, episode, etc, that precedes an existing work in time •Not very precisely differentiated from flashback: what Hollywood calls a ''prequel,'' an adventure that takes place at the start of his career [1973+; based on sequel]
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- 2 something belonging to an earlier time from which something else was later developed the typewriter is the antecedent of the computer keyboard Synonyms ancestor, archetype, daddy, foregoer, forerunner, granddaddy (also grandaddy), precursor, predecessor, prototypeRelated Words model, original; originator, sire; father, motherNear Antonyms ...
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- Definition of precursor in the AudioEnglish.org Dictionary. Meaning of precursor. What does precursor mean? Proper usage and pronunciation (in phonetic transcription) of the word precursor. Information about precursor in the AudioEnglish.org dictionary, synonyms and antonyms.
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- A story that's written before another story, that shares some characters with that other story, and that takes place before that other story is what a 'prequel' is. The word i … n English comes from the joining of the Latin prefix 'pre-' to the Latin noun 'sequel'. The syllable 'pre-' means 'before'. The word 'sequel' means 'something which follows'.
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- n. [countable] 1  something that goes before and serves to lead up to something else, as an introductory step or stage in some development:Once the social preliminaries were over, the two sides got down to serious discussion. 2  Sporta sports or athletic contest that takes place before the main event on the program.
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- Precursor: Forerunner. That which precedes or is derived from an available source. The term precursor is applied to an inactive substance converted to an active one (such as an enzyme, vitamin, or hormone). The term precursor applies to any chemical that is transformed into another. From the Latin praecursor, composed of prae- (or pre-), before + curro to run = to run before.
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Neural oscillation Harmonic oscillations appear very frequently in nature—examples are sound waves, the motion of a pendulum, and vibrations of every sort. They generally arise when a physical system is perturbed by a small degree from a minimum-energy state, and are well understood mathematically.
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- noun. 1  One that precedes and indicates, suggests, or announces someone or something to come: Colonial opposition to unfair taxation by the British was a precursor of the Revolution. 2  One that precedes another; a forerunner or predecessor: The new principal's precursor was an eminent educator. A biochemical substance, such as an intermediate compound in a chain of enzymatic reactions, from which a more stable or definitive product is formed: a precursor of insulin. Origin of precursor
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precursor Precursor is defined as something that led to the creation of something similar but new. An example of precursor is how radio came before but helped create television. The definition of a precursor is something or someone that came before. An example of a precursor is the dark clouds before a storm.
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promoter (prəˈmoʊ tər) n. 1. one that promotes, furthers, or encourages. 2. a person who initiates or takes part in the organizing of a company, development of a project, etc. 3. a person who organizes and finances a sporting event or entertainment. 4. a. a site on a DNA molecule at which RNA polymerase binds and initiates transcription. b. a gene sequence that activates transcription.
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precursor a person or thing that precedes, as in a job, a method, etc.; predecessor. 2. a person, animal, or thing that goes before and indicates the approach of someone or something else; harbinger: The first robin is a precursor of spring.
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- LINK / CITE ADD TO WORD LIST. adjective. The definition of preliminary is something that happens or comes before the main action. An example of a preliminary act is a drug screen that happens before a new employee is hired.
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sire Definition of sire. 1  1a : fatherb archaic : male ancestor : forefatherc : author, originator. 2  2a archaic : a man of rank or authority; especially : lord —used formerly as a form of address and as a titleb obsolete : an elderly man : senior. 3  3 : the male parent of an animal and especially of a domestic animal.
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- Prequel: A work that supplements a previously completed one, and has an earlier time setting. These can often avoid the plot problems associated with having to deal with the c … onsequences of the original (e.g. the death of an important character).
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precursor precursor - something that precedes and indicates the approach of something or someone. precursor. 1. forerunner, pioneer, predecessor, forebear, antecedent, originator Real tennis, a precursor of the modern game, originated in the eleventh century.
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promoter 1. one that promotes, furthers, or encourages. 2. a person who initiates or takes part in the organizing of a company, development of a project, etc. 3. a person who organizes and finances a sporting event or entertainment. 4. a. a site on a DNA molecule at which RNA polymerase binds and initiates transcription.
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Precursor cell Precursor cells are stem cells that have developed to the stage where they are committed to forming a particular kind of new blood cell. Read More In blood: Blood cells Precursor cells are stem cells that have developed to the stage where they are committed to forming a particular type of new blood cell. By dividing and differentiating, precursor cells give rise to the four major blood cell lineages: red cells, phagocytic cells, megakaryocytes, and… Read More reticuloendothelial system