[ˈkɑːdɪɔɪd], (Noun)

Definitions:
- a heart-shaped curve traced by a point on the circumference of a circle as it rolls around another identical circle


Phrases:

Origin:
mid 18th century: from Greek kardioeidēs ‘heart-shaped’, from kardia ‘heart’ + eidos ‘form’

[ˈkɑːdɪɔɪd], (Adjective)

Definitions:
- of the shape of a cardioid


Phrases:

Origin:
mid 18th century: from Greek kardioeidēs ‘heart-shaped’, from kardia ‘heart’ + eidos ‘form’