The American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- Of, relating to, or occurring at a time before the advent of modern science and the application of its methods.
- Prior to testing or formulation in scientific terms; preliminary: a statement that is as yet prescientific.