[felipemnoa]

I get it, these are specific definitions within a given field. I looked at the definition of both precision [1] and accurate [2] and each would use the other as a synonym, which made it a bit confusing as to what he was talking about.

[1] pre·ci·sion: noun the quality, condition, or fact of being exact and accurate.

[2]ac·cu·rate (of information, measurements, statistics, etc.) correct in all details; exact. "accurate information about the illness is essential" synonyms: correct, precise, exact, right, error-free, perfect; More

[jodoherty]

Standard English dictionaries often don't have the precise definitions used in specific fields, which only leads to more confusion for laymen, but any good introductory Chemistry lab textbook should be able to get you up to speed on experimental science definitions.