Definition of "collocation"
collocation
noun
countable and uncountable, plural collocations
(uncountable) The grouping or juxtaposition of things, especially words or sounds.
(linguistics, translation studies) A sequence of words or terms that co-occur more often than would be expected by chance (i.e., the statistically significant placement of particular words in a language), often representing an established name for, or idiomatic way of conveying, a particular semantic concept.
(mathematics) A method of finding an approximate solution of an ordinary differential equation L [ y ] = 0 by determining coefficients in an expansion y ( x ) = y 0 ( x ) + ∑ l = 0 q α l y l ( x ) so as to make L [ y ] vanish at prescribed points; the expansion with the coefficients thus found is the sought approximation.