the part of the large intestine that extends from the caecum to the rectum
colonic/kəʹlonik/adj
[via Latin from Greek kolon colon]
colon2noun
a punctuation mark (:) used chiefly to introduce a quotation, a or list of items, or an expansion or explanation of words earlier in the sentence to direct attention to matter that follows
the sign (:) used in various technical contexts, esp to show a ratio, e.g. 4:1 = ‘four to one’
[via Latin from Greek kōlon limb, part of a strophe]