Glossary is usually defined as an alphabetical list of technical terms in some specialized field of knowledge. This knowledge base glossary provides a collection of knowledge base documents that define many technical terms. These terms are arranged alphabetically, but you can quickly jump to a specific term by selecting its first letter from the index of the knowledge base glossary below.

Any of the large, mononuclear, highly phagocytic cells derived from monocytes occurring in the walls of the blood vessels and in loose connective tissue.

Nucleic acid that carries instruction to a ribosome for the synthesis of a particular protein.

Major Histocompatibility Complex of the immune system.

Study of living organisms that can be seen only under a microscope.

Any organism that can be seen only with the aid of a microscope. Also called microbe.

Study of how genes function to control cellular activities

Highly specific, purified antibody that is derived from only one clone of cells and recognizes only one antigen.