ROTUNDITY

sphericity, sphericalness, globosity, globularness, rotundity, rotundness

(noun) the roundness of a 3-dimensional object

roundness, rotundity

(noun) the fullness of a tone of voice; “there is a musky roundness to his wordiness”

Source: WordNet® 3.1

Etymology

Noun

rotundity (countable and uncountable, plural rotundities)

The quality of being rotund.

Source: Wiktionary

Ro*tund"i*ty, n. Etym: [L. rotunditas: cf. F. rotondité.]

1. The state or quality of being rotu Smite flat the thick rotundity o'the world! Shak.

2. Hence, completeness; entirety; roundness. For the more rotundity of the number and grace of the matter, it passeth for a full thousand. Fuller. A boldness and rotundity of speech. Hawthorne.

Source: Webster’s Unabridged Dictionary 1913 Edition