the sign (:) used to mark a major division in a sentence, to indicate that what follows is an elaboration, summation, implication, etc., of what precedes; or to separate groups of numbers referring to different things, as hours from minutes in 5:30; or the members of a ratio or proportion, as in 1 : 2 = 3 : 6.
Classical Prosody. one of the members or sections of a rhythmical period, consisting of a sequence of from two to six feet united under a principal ictus or beat.
Origin of colon
1580–90; < Latin < Greekkôlon limb, member, clause
Anatomy. the part of the large intestine extending from the cecum to the rectum.
Zoology. the portion of the digestive tract that is posterior to the stomach or gizzard and extends to the rectum.
Origin of colon
1350–1400;Middle English < Latin < Greekkólon large intestine
punctuation mark, 1540s, from Latin colon "part of a poem," from Greek kolon (with a long initial -o-) "part of a verse," literally "limb," from PIE root *(s)kel- "to bend, crooked" (see scalene). Meaning evolved from "independent clause" to punctuation mark that sets it off.
"large intestine," late 14c., from Greek kolon (with a short initial -o-) "large intestine, food, meat," of unknown origin.
The longest part of the large intestine, extending from the cecum to the rectum. Water and electrolytes are absorbed, solidified, and prepared for elimination as feces in the colon. The colon also contains bacteria that help in the body's absorption of nutrients from digested material.
A punctuation mark (:) used to introduce a description, an explanation, or a list. For example, “She would own only one kind of pet: a Siamese cat” and “The little boy announced that he wanted the following for his birthday: two sweaters, a new tent, and three toy cars.”