density

noun
den·​si·​ty | \ ˈden(t)-sə-tē How to pronounce density (audio) \
plural densities

Definition of density

1 : the quality or state of being dense measures of traffic density the density of the cake felt that the candidate's density on the subject of equality was alarming the density of her prose
2 mathematics : the quantity per unit volume (see volume entry 1 sense 2), unit area (see area sense 1), or unit length: such as
a chemistry : the mass (see mass entry 2 sense 1c) of a substance per unit volume
b chemistry : the distribution of a quantity (such as mass, electricity, or energy) per unit usually of space (such as length, area, or volume)
c : the average number of individuals or units per space unit a population density of 500 per square mile a housing density of 10 houses per acre

3 physics

a : the degree of opacity (see opacity sense 2) of a translucent medium the fog's density
b : the common logarithm of the opacity

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Examples of density in a Sentence

We were surprised by the fog's density. the density of her writing style These instruments are used for measuring the density of the atmosphere.
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Recent Examples on the Web

Spiegel began to research the skeletal differences between cisgender men and women, finding marked differences in their bone shapes and densities. Serena Daniari, Allure, "The Complicated Process of Undergoing Facial-Feminization Surgery, and Why I Did It," 23 Mar. 2019 For Softness: Medium density & weight, cut pile, wool. Lucia Tonelli, ELLE Decor, "The Best Carpet Types for a Perfectly Grounded Space," 13 Feb. 2019 Cabbage may have the upper hand in terms nutrient density though. Jaclyn London, Ms, Rd, Cdn, Good Housekeeping, "Fact: Cabbage Packs the Same Nutritional Benefits as Kale," 7 Jan. 2019 As with glass optics, the shape and density of the optic really matters. Chris Lee, Ars Technica, "Gas jets make beautiful lens for light we can’t normally focus," 21 Dec. 2018 More density also means more housing, especially along transit corridors and downtown near jobs. Patrick Sisson, Curbed, "As cities confront climate change, is density the answer?," 11 Dec. 2018 Because Venus’s upper atmosphere has similar pressure, density, gravity, and radiation protection to Earth’s surface, NASA is considering an airship-style vehicle for exploring the planet. Fox News, "NASA eyes stunning 'cloud city' airship concept to explore Venus," 16 Oct. 2018 Meantime, the dreamlike density and eeriness linger. Joan Frank, SFChronicle.com, "‘Kudos,’ by Rachel Cusk," 6 July 2018 The reduction in density in the shin bone was nearly half as large in women taking L. reuteri supplements as in those taking the placebo. Nicholas Bakalar, New York Times, "Probiotics May Be Good for Your Bones," 3 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'density.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of density

1598, in the meaning defined at sense 1

History and Etymology for density

see dense

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Statistics for density

Last Updated

15 Apr 2019

Look-up Popularity

Time Traveler for density

The first known use of density was in 1598

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More Definitions for density

density

noun

English Language Learners Definition of density

: the quality of having parts that are close together
: the quality of being difficult to see through
: the quality of being difficult to understand

density

noun
den·​si·​ty | \ ˈden-sə-tē How to pronounce density (audio) \
plural densities

Kids Definition of density

1 : the condition of having parts that are close together the jungle's density
2 : the amount of something in a specified volume or area high population density

density

noun
den·​si·​ty | \ ˈden(t)-sət-ē, -stē How to pronounce density (audio) \
plural densities

Medical Definition of density

1 : the quantity per unit volume, unit area, or unit length: as
a : the mass of a substance per unit volume
b : the distribution of a quantity (as mass, electricity, or energy) per unit usually of space
c : the average number of individuals or units per space unit a population density of 500 per square mile
2a : the degree of opacity of a translucent medium

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Comments on density

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