a gas cylinder containing oxygen

A cylindrical vessel capable of containing a compressed gas at high pressure.

(physics) A thermodynamic cycle used as an ideal standard for the comparative performance of heat engines.

the philosophy of the Greek Cynics

Alternative spelling of sulfur cycle

recurring at regular intervals

(chemistry, biochemistry) the natural cycle which includes the mineralization of organic sulfur to sulfide, oxidation of this to sulfate, and reduction of this to sulfide followed by microbial incorporation of this into organic compounds

(uncountable) A distrustful attitude.

Any of various flowering plants, of the genus Cyclamen, widely cultivated as a houseplant, having decorative leaves and solitary flowers.

(mathematics) Any function that is a solution of the Bessel equation