A finite universeâthat is, a universe of limited sizeâeven one with trillions and trillions of stars, just wouldn't have enough stars to light up all of space. Although the idea of a finite universe explains why Earth's sky is dark at night, other causes work to make it even darker.Not only is the universe finite in size, it is also finite in age.lthough the idea of a finite universe explains why Earth's sky is dark at night, other causes work to make it even darker. Not only is the universe finite in size, it is also finite in age.
Noun. 1. litmus-a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator. litmus test. acid-base indicator-an indicator that changes color on going from acidic to basic solutions.
The noun LITCHI has 2 senses: 1. Chinese tree cultivated especially in Philippines and India for its edible fruit; sometimes placed in genus Nephelium. 2. Chinese fruit having a thin brittle shell enclosing a sweet jellylike pulp and a single seed; often dried. Familiarity information: LITCHI used as a noun is rare.