This is a good example of how the internet is being abused. You can also find a definition for 'aint' on dictionary.com. The site seeks to define just about any word that is commonly used or to offer up any definition that is commonly understood, regardless of correctness. Sure, it's a good place to find the meaning of a word if you're in a hurry, but I'd hardly consult it in matters of official usage of the language. Try a real dictionary instead.
facts and statistics collected together for reference or analysis:
there is very little data availablethe quantities, characters, or symbols on which operations are performed by a computer, which may be stored and transmitted in the form of electrical signals and recorded on magnetic, optical, or mechanical recording media. Philosophythings known or assumed as facts, making the basis of reasoning or calculation. Origin:
mid 17th century (as a term in philosophy): from Latin, plural of datum
In Latin, data is the plural of datum and, historically and in specialized scientific fields , it is also treated as a plural in English, taking a plural verb, as in the data were collected and classified; . In modern non-scientific use, however , it is generally not treated as a plural. Instead, it is treated as a mass noun, similar to a word like information, which takes a singular verb. Sentences such asdata was collected over a number of yearsare now widely accepted in standard English