CARDIOID

cardioid

(noun) an epicycloid in which the rolling circle equals the fixed circle

Source: WordNet® 3.1


Etymology

Noun

cardioid (plural cardioids)

(geometry) An epicycloid with exactly one cusp; the plane curve with polar equation \(\rho = 1 + \cos\,\theta\) - approximately heart-shaped

Adjective

cardioid (comparative more cardioid, superlative most cardioid)

Having this characteristic shape

(of a microphone) sensitive in front, but not behind or at the sides

Anagrams

• caridoid, cidaroid

Source: Wiktionary


Car"di*oid, n. Etym: [Gr. ( (Math.)

Definition: An algebraic curve, so called from its resemblance to a heart.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

9 May 2025

RIGHT

(noun) anything in accord with principles of justice; “he feels he is in the right”; “the rightfulness of his claim”


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Coffee Trivia

Some 16th-century Italian clergymen tried to ban coffee because they believed it to be “satanic.” However, Pope Clement VII loved coffee so much that he lifted the ban and had coffee baptized in 1600.

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