kulisty

Kulisty is a Polish adjective describing a shape or form that is spherical or ball-shaped. It is used to indicate that an object has, or is close to having, the geometry of a sphere. The term is common in both everyday language and technical contexts, including biology, chemistry, geology, and astronomy, where spherical or near-spherical forms appear frequently. The noun form kulistość denotes the property of being spherical or the degree of sphericity.

Etymology and related forms: Kulisty derives from the noun kula (ball, sphere) with the suffix -isty, which marks a characteristic quality. The related noun kulistość corresponds to sphericity or the quality of being spherical. The word agrees in gender and number with the noun it describes: kulisty (masculine), kulista (feminine), kuliste (neuter or plural).

Usage and examples: In biology one might speak of kuliste bakterie, i.e., cocci. In chemistry or materials science, kuliste cząsteczki refer to roughly spherical molecules, such as certain fullerenes. In geology or everyday speech, kuliste bryły can describe rounded rocks or pebbles. In astronomy or planetary science, kuliste ciała niebieskie is a general term for near-spherical celestial bodies, including many asteroids and planets.

See also: kula, kulistość, sferyczność.