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1. Dictionary

   heart

   /hɑːt/

   noun

   • 1. a hollow muscular organ that pumps the blood through the circulatory system by rhythmic contraction and dilation. In vertebrates there may be up to four chambers (as in humans), with two atria and two ventricles. Similar informal:ticker
   • ▪ the region of the chest above the heart: "holding hand on heart for the Pledge of Allegiance"
   • ▪ the heart regarded as the centre of a person's thoughts and emotions, especially love, compassion, or loyalty: "hardening his heart, he ignored her entreaties" Similar emotionsfeelingssentimentssoulmindbosombreastloveaffectionpassionsympathypityconcerncompassion
   • ▪ one's mood or feeling: "they had a change of heart" Similar compassionsympathyhumanityfeeling(s)fellow feelingconcern for othersbrotherly lovetender feelingstendernessempathyunderstandingkindnesskindlinessgoodwillbenevolencehumanitarianism
   • ▪ courage or enthusiasm: "they may lose heart as the work mounts up" Similar enthusiasmkeennesseagernessspiritdeterminationresolutionresolvepurposecouragebackbonespinenervestomachwillwill powerfortitudebraverystout-heartednessinformal:gutsspunkgritbottlevulgar slang:balls
   • 2. the central or innermost part of something: "right in the heart of the city" Similar centrecentral partmiddlehubcorenucleuskerneleyebosomnavelOpposite edge
   • ▪ the vital part or essence: "the heart of the matter" Similar essencequintessencecruxcorenubrootgistmeatmarrowpithsubstancesum and substanceessential partintrinsic naturekernelnucleusinformal:nitty-grittyOpposite peripherals
   • ▪ the close compact head of a cabbage or lettuce.
   • 3. a conventional representation of a heart with two equal curves meeting at a point at the bottom and a cusp at the top.
   • ▪ one of the four suits in a conventional pack of playing cards, denoted by a red heart-shaped figure.
   • ▪ a card of the suit of hearts.
   • ▪ a card game similar to whist, in which players attempt to avoid taking tricks containing a card of the suit of hearts.
   • 4. the condition of agricultural land as regards fertility: "a well-maintained farm in good heart"

   verb

   • 1. like very much; love: informal "I totally heart this song"

   Word Origin Old Englishheorte, of Germanic origin; related to Dutch hart and German Herz, from an Indo-European root shared by Latin cor, cord- and Greek kēr, kardia.

   Scrabble Points: 8

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2. www.merriam-webster.com › dictionary › heartHeart Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › heart

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   The meaning of HEART is a hollow muscular organ of vertebrate animals that by its rhythmic contraction acts as a force pump maintaining the circulation of the blood. How to use heart in a sentence.

3. dictionary.cambridge.org › dictionary › englishHEART | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   Learn the meaning of heart as an organ, an emotion, a shape, a suit of cards, and more. See how to use heart in sentences and idioms with examples from the Cambridge English Corpus.

4. Videos

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     1:20

     youtube.com

     Anatomy and Function of the Heart

     6 Jun 2014

     648.9K views

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     2:42

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     Heart 101 | National Geographic

     21 Feb 2019

     6.2M views

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     0:36

     youtube.com

     10 lines on human heart in english | human heart | define human heart | heart functions diagram |

     17 Dec 2023

     257 views

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5. en.wikipedia.org › wiki › HeartHeart - Wikipedia

   en.wikipedia.org › wiki › Heart

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   The heart is a muscular organ found in most animals. This organ pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs.

6. dictionary.cambridge.org › us › dictionaryHEART | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

   • Cached

   Learn the meaning of heart as an organ, an emotion, a shape, a suit of cards, and more. See how to use heart in sentences and idioms with examples from the Cambridge Dictionary.

7. www.britannica.com › science › heartHeart | Structure, Function, Diagram, Anatomy, & Facts

   www.britannica.com › science › heart

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   4 days ago · heart, organ that serves as a pump to circulate the blood. It may be a straight tube, as in spiders and annelid worms, or a somewhat more elaborate structure with one or more receiving chambers (atria) and a main pumping chamber (ventricle), as in mollusks.

   • Author: The Editors of Encyclopaedia Britannica

   • In humans, the heart is situated between the two lungs and slightly to the left of center, behind the breastbone. It rests on the diaphragm, the mu...
   • The heart consists of several layers of a tough muscular wall, the myocardium. A thin layer of tissue, the pericardium, covers the outside, and ano...
   • The pumping of the heart, or the heartbeat, is caused by alternating contractions and relaxations of the myocardium. These contractions are stimula...
   • The rhythmic noises accompanying the heartbeat are called heart sounds. The two distinct sounds are heard, a low, slightly prolonged “lub” (first s...

8. www.dictionary.com › browse › heartHEART Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › heart

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   Heart definition: a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers. See examples of HEART used in a sentence.

9. www.oxfordlearnersdictionaries.com › definition › englishheart noun - Definition, pictures, pronunciation and usage notes...

   www.oxfordlearnersdictionaries.com › definition › english

   • Cached

   Definition of heart noun from the Oxford Advanced Learner's Dictionary. heart. noun. /hɑːt/ /hɑːrt/ Idioms. part of body. [countable] the organ in the chest that sends blood around the body, usually on the left in humans. The patient's heart stopped beating for a few seconds.