epicycloid
Word Rarity
Very rare
Frequency: Zipf frequency 0.00 in modern English
20
Scrabble Score
10
Letters
2
Syllables
8
Unique Chars
Meaning
noun
The locus of a point on the circumference of a circle that rolls without slipping on the circumference of another circle.
Etymology
Etymology tree Proto-Indo-European *h₁ep-der. Proto-Indo-European *h₁épsder. Proto-Indo-European *h₁épi Proto-Hellenic *epí Ancient Greek ἐπί (epí) Ancient Greek ἐπῐ- (epĭ-)der. English epi- English cycloid English epicycloid From epi- (“above or outside”) + cycloid.