What is Certificate Of Incorporation?

Legal Definition
A certificate of incorporation is a legal document relating to the formation of a company or corporation. It is a license to form a corporation issued by state government. Its precise meaning depends upon the legal system in which it is used.
-- Wikipedia
Legal Definition
The instrument by which a private corporation is formed, under general statutes, executed by several persons as incorporators, and setting forth the name of the proposed corporation, the objects for which it is formed, and such other particulars as may be required or authorized by law, and filed in some designated public office as evidence of the corporate existence. This is properly distinguished from a "charter," which is a direct legislative grant of corporate existence and powers to named individuals; but practically the certificate of incorporation or "articles of incorporation" will contain the same enumeration of corporate powers and description of objects and purposes as a charter.
-- Black's Law Dictionary
Legal Definition
In New York, the term used for “articles of incorporation”.