Verb

(en verb)

To restrain within bounds; to limit; to confine; as, to restrict worlds to a particular meaning; to restrict a patient to a certain diet.

* {{quote-news

, year=2011 , date=September 28 , author=Jon Smith , title=Valencia 1 - 1 Chelsea , work=BBC Sport citation , page= , passage=It was no less than Valencia deserved after dominating possession in the final 20 minutes although Chelsea defended resolutely and restricted the Spanish side to shooting from long range.}}

(specifically, mathematics) To consider (a function) as defined on a subset of its original domain.

If we restrict sine to $[-\backslash frac\backslash pi2,\backslash frac\backslash pi2]$, we can define its inverse.

Verb

(differentiat)

To show, or be the distinction between two things.

* Earle

The word "then" was differentiated into the two forms "then" and "than".

* {{quote-book, year=1933

, passage=The mass of the rich and poor are differentiated by their incomes and nothing else, and the average millionaire is only the average dishwasher dressed in a new suit. , author=George Orwell, title=Down and Out in Paris and London, chapter=Ch. XXII, page=120, publisher=Harvest / Harcourt paperback edition}}

To perceive the difference between things; to discriminate.

* {{quote-book, title=, year=1964

, passage=he refused to instruct that actual intent to harm or recklessness had to be found before punitive damages could be awarded, or that a verdict for respondent should differentiate between compensatory and punitive damages.}}

(intransitive) To modify, or be modified.

(mathematics) To calculate the derivative of a function.

(mathematics) To calculate the differential of a function of multiple variables.

(biology) To produce distinct organs or to achieve specific functions by a process of development called differentiation.

* {{quote-book, title=, year=1930, author=Robert Evans Snodgrass

, passage=In Chapter IV we learned that every animal consists of a body, or soma, formed of cells that are differentiated from the germ cells usually at an early stage of development.}}