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defined

American  
[dih-fahynd] / dɪˈfaɪnd /

adjective

  1. determined, fixed, or clearly marked out as to extent, outline, or form.

    an itchy red rash with sharply defined edges.


Etymology

Origin of defined

First recorded in 1720–30; define ( def. ) + -ed 2 ( def. )

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

So it introduced a 'ramp-down rate' which defined the time period over which the electrical energy could run out.

From BBC • Apr. 3, 2026

From 1995 to 2005, the MLB rule book defined strikes as the area over home plate from the midpoint between the shoulders and the top of the pants, down to the bottom of the knees.

From Los Angeles Times • Apr. 1, 2026

AI’s future won’t be defined by who can build the largest data centers, but by who can deliver the most intelligence per unit of energy and cost, according to investor Vinod Khosla.

From The Wall Street Journal • Mar. 31, 2026

Stocks have taken a hit, with only the S&P 500 among the four main U.S. equity indexes avoiding a correction in March, defined by a drop of at least 10% from a recent peak.

From MarketWatch • Mar. 31, 2026

It was also defined as someone who had a lot of money or at least the trappings of money: a big car, an expensive watch, or expensive clothes.

From "Bad Boy" by Walter Dean Myers