hypocycloid
(noun) a line generated by a point on a circle that rolls around inside another circle
Source: WordNet® 3.1
hypocycloid (plural hypocycloids)
(geometry) The locus of a point on the circumference of a circle that rolls without slipping inside the circumference of another circle.
Source: Wiktionary
Hy`po*cy"cloid, n. Etym: [Pref. hypo- + cycloid: cf. F. hypocycloĂŻde.] (Geom.)
Definition: A curve traced by a point in the circumference of a circle which rolls on the concave side in the fixed circle. Cf. Epicycloid, and Trochoid.
Source: Webster’s Unabridged Dictionary 1913 Edition
17 January 2025
(verb) conform one’s action or practice to; “keep appointments”; “she never keeps her promises”; “We kept to the original conditions of the contract”
International Coffee Day (September 29) is an occasion to promote and celebrate coffee as a beverage, with events occurring in places across the world. A day to promote fair trade coffee and raise awareness for the coffee growers’ plight. Other countries celebrate this event on October 1.