### Multiple Definitions {#multipledefs} Partiality has multiple definitions - some are well known while others are rather obscure. #### Well-Known {#wellknown} Dictionaries usually define the word as: **partiality** /pɑːʃɪˈalɪti/ - noun: partiality; plural: partialities 1. unfair bias in favour of one person or thing; favouritism. "an attack on the partiality of judges" synonyms: bias, prejudice, favouritism, favour, partisanship, unfair preference, discrimination, unjustness, unfairness, inequity "the president had shown partiality towards the group's cause" 2. a particular liking or fondness for something. "Miller's partiality for flowering shrubs is evident" synonyms: liking, love, fondness, taste, weakness, soft spot, keenness, inclination, predilection, predisposition, proclivity, penchant, fancy, relish, passion "his partiality for brandy and soda was notorious" Origin: late Middle English: from Old French parcialite, from medieval Latin partialitas, based on Latin pars, part- ‘part’.[^partiality] [^partiality]: Source: [Google - Partiality](https://www.google.de/search?q=partiality) #### Obscure {#obscure} As the opposite of **totality or total functions**. “In mathematics, a partial function from X to Y (written as f: X ↛ Y) is a function f: X' → Y, where X' is a subset of X. It generalizes the concept of a function f: X → Y by not forcing f to map every element of X to an element of Y (only some subset X' of X). If X' = X, then f is called a total function and is equivalent to a function. Partial functions are often used when the exact domain, X' , is not known (e.g. many functions in computability theory).”[^partial-fn] [^partial-fn]: Source: [Wikipedia - Partial Function](http://en.wikipedia.org/wiki/Partial_function) Partial functions should not to be confused with [partial derivatives](http://en.wikipedia.org/wiki/Partial_derivative) or [partial fractions](http://www.mathsisfun.com/algebra/partial-fractions.html). #### Others {#others} Another definition is with regards to **solar eclipses**. Total solar eclipse - totality and a partial solar eclipse - partiality.