Science is an interconnected series of concepts and conceptual schemes that have developed as a result of experimentation and observation, and are fruitul of further experimentation and observations.
-Science and Common Sense - By: Dr. James B. Conant (former president of Harvard)

Scientific proof is based on showing that something is a fact by repeating the event in the presence of the person questioning the fact.
-More than a Carpenter - Josh McDowell

The scientific method, however it is defined, is related to measurement of phenomena and experimentation or repeated observation.
-The New Encyclopaedia Britannica - Micropaedia Vol. VIII, pg 985

Science:
1: a branch of knowledge or study dealing with a body of facts or truths systematically arranged and showing the operation of general laws
2. systematic knowledge of the physical or material world gained through observation and experimentation.

Translation:
“True” Science is something that can be reproduced and observed.