@Finn dAbuzz,
Modern science is an institution.
Scientists are people who choose to study science... this means 10 or 12 years of study where they master mathematics, study many fields of science, do problem sets, perform experiments in the lab and get feedback from peers and professors. These scientist have worked diligently to become experts in their field, and we as a society have set up a scientific and academic community to support this practice and the field of knowledge behind it.
To clarify, when I say "reject science" I really mean reject the institution of science as practiced by our society. This includes global warming, and evolution, and public health.
Science has literally doubled the life expectancy of humans, built machines that allow us to fly, and built this network that allows us to broadcast our thoughts over thousands of miles. Yes, this is the same scientific institutions that are warning us about global climate change also supports evolution and vaccinations.
So by anti-science, I mean rejecting the institution of science as it is practiced by scientists and scientific oragnizations; whether that be the science of vaccinations or GMOs or climate change or evolution.