Illustration of cardioid
- ABP fixed circle
- PCD first position of rolling circle
- P tracing point
- PM diameter through P
- P1 P2 P3 P4 various positions of P
- P1M1 P2M2 P3M3 P4M4 various positions of PM
cardioid
noun
car·di·oid
ˈkär-dē-ˌȯid 
: a heart-shaped curve that is traced by a point on the circumference of a circle rolling completely around an equal fixed circle and has an equation in one of the forms ρ = a(1 ± cos θ) or ρ = a(1 ± sin θ) in polar coordinates
Examples of cardioid in a Sentence
Recent Examples on the Web
This was coupled with a doughnut shape of 68 triple 21-inch cardioid subs around the stage for even coverage throughout the venue, backed up by additional subs for the points furthest away.
—
Jeff Ihaza, Rolling Stone, 2 July 2024
The largest lobe on top of the main cardioid, for example, represents functions that oscillate between three values.
—Quanta Magazine, 26 Jan. 2024
Points in the main cardioid correspond to functions that, when iterated from a starting value of zero, converge to a single number.
—Quanta Magazine, 26 Jan. 2024
The mic also comes with four different polar pattern options: cardioid, omnidirectional, stereo, and bidirectional.
—Tom Price, Popular Mechanics, 14 Mar. 2023
The cardioid mimics the appearance of an embryonic heart after about the first month of development.
—Theresa MacHemer, Smithsonian Magazine, 20 May 2021
The donation by Audio-Technica is a fitting one as the AT2020 cardioid condenser was the first side-address microphone that was priced less than £100/€100 and provided professional-quality sound.
—Mark Sparrow, Forbes, 20 Oct. 2021
The cells stay behind on the cardioid, which then starts to recover.
—Theresa MacHemer, Smithsonian Magazine, 20 May 2021
The Yeti can record in four different modes: cardioid, omni, bidirectional, and stereo.
—Popular Science, 21 Jan. 2020
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Jeff Ihaza, Rolling Stone, 2 July 2024
The largest lobe on top of the main cardioid, for example, represents functions that oscillate between three values.
—Quanta Magazine, 26 Jan. 2024
Points in the main cardioid correspond to functions that, when iterated from a starting value of zero, converge to a single number.
—Quanta Magazine, 26 Jan. 2024
The mic also comes with four different polar pattern options: cardioid, omnidirectional, stereo, and bidirectional.
—Tom Price, Popular Mechanics, 14 Mar. 2023
The cardioid mimics the appearance of an embryonic heart after about the first month of development.
—Theresa MacHemer, Smithsonian Magazine, 20 May 2021
The donation by Audio-Technica is a fitting one as the AT2020 cardioid condenser was the first side-address microphone that was priced less than £100/€100 and provided professional-quality sound.
—Mark Sparrow, Forbes, 20 Oct. 2021
The cells stay behind on the cardioid, which then starts to recover.
—Theresa MacHemer, Smithsonian Magazine, 20 May 2021
The Yeti can record in four different modes: cardioid, omni, bidirectional, and stereo.
—Popular Science, 21 Jan. 2020
Dictionary Entries Near cardioid
Cite this Entry
“Cardioid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cardioid. Accessed 22 Dec. 2024.
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