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.
This lamp is lit. This lamp is lit. The definition of lit is a slang term for drunk or intoxicated. An example of lit is to tell a story about a friend who had too many drinks the night before and say âHe was lit.â. Lit is defined as a common abbreviation for literature. An example of lit is taking a college course called English Lit. Lit means to have brightened something with light or flames. 1  An example of lit is to have started a fire. 2  An example of lit is to have turned on a lamp.