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- Dictionaryheart/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
- 2. the central or innermost part of something: "right in the heart of the city" Similar Opposite
verb
- 1. like very much; love: informal "I totally heart this song"
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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.
Jun 11, 2024 · Heart, organ that serves as a pump to circulate the blood. It may be as simple as a straight tube, as in spiders and annelid worms, or as complex as the four-chambered double pump that is the center of the circulatory system in humans, other mammals, and birds. Learn more about the heart in this article.
The heart is the first functional organ to develop and starts to beat and pump blood at about three weeks into embryogenesis. This early start is crucial for subsequent embryonic and prenatal development. The heart derives from splanchnopleuric mesenchyme in the neural plate which forms the cardiogenic region.
HEART definition: 1. the organ in your chest that sends the blood around your body: 2. used to refer to a person's…. Learn more.
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.
HEART meaning: 1. the organ in your chest that sends the blood around your body: 2. used to refer to a person's…. Learn more.
Definitions of heart. noun. the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body. “he stood still, his heart thumping wildly” synonyms: pump, ticker. see more. noun. a firm rather dry variety meat (usually beef or veal) “a five-pound beef heart will serve six”
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.
B1. someone's deepest feelings and true character: She has a kind heart. heart noun (SHAPE) a shape that is used to mean love. hearts. playing cards with red, heart shapes on them. at heart. used to say what someone is really like: I'm just a kid at heart. in your heart. used to say what you really think: In his heart he felt they were wrong.
Oct 4, 2019 · Heart Definition. The heart is a muscular organ that pumps blood throughout the body. It is located in the middle cavity of the chest, between the lungs. In most people, the heart is located on the left side of the chest, beneath the breastbone. The heart is composed of smooth muscle.
