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HowStuffWorks Science has explanations and colorful illustrations related to earth science, life science, and other wonders of the physical world.

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Online Medical Dictionary and glossary with medical definitions

Definition of word from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games.

A visual tour of cells, bacteria, viruses and their interaction with one another.

YouTube is a place to discover, watch, upload and share videos.

The starting place for exploring Biology. Find information about human anatomy, cell anatomy, online dissections and much more.

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.

International führender Wissenschaftsverlag - Wissenschaft, Technik, Medizin, Architektur, Wirtschaft und Verkehr - Zeitschriften, Bücher und EContent.

The ALS Association encourages scientific research to find a cure for ALS, heightens awareness of the nature of the disease, stimulates volunteerism and activism, and increases awareness of government leaders to encourage support of research and pati...

Accurate, up-to-date, comprehensive cancer information from the U.S. government

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear audio pronunciations.