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cardioid

[ kahr-dee-oid ]

noun

Mathematics.
  1. a somewhat heart-shaped curve, being the path of a point on a circle that rolls externally, without slipping, on another equal circle. Equation: r = a (1−cDz).


cardioid

/ ˈɑːɪˌɔɪ /

noun

  1. a heart-shaped curve generated by a fixed point on a circle as it rolls around another fixed circle of equal radius, a. Equation: r = a (1 – cos φ), where r is the radius vector and φ is the polar angle
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

cardioid

/ äŧ-Ǿ′ /

  1. A heart-shaped plane curve, the locus of a fixed point on a circle that rolls on the circumference of another circle with the same radius.
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yvlog History and Origins

Origin of cardioid1

First recorded in 1745–55, cardioid is from the Greek word 첹徱DZ𾱻ḗs heart-shaped. See cardi-, -oid
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Example Sentences

Examples have not been reviewed.

This cardioid condenser mic is great for podcasting and streaming, and it comes with a small desktop tripod.

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This broadcast-quality dynamic mic features a cardioid polar pattern to isolate your voice — helpful in the studio as well as your home setup.

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The most significant difference is the type of microphone being used: to help reduce background noise, it’s now a cardioid unidirectional mic that’s designed to only pick up sound coming from wherever it’s pointed.

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This model also features built-in microphones, so you won’t have to resort to using the large, detachable cardioid mic for making calls.

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Razer claims that its hypercardioid condenser is better than most other cardioid microphones at focusing on your voice while blocking out other noises.

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