- The basic unit of all living things. Organs are made up of millions of cells. Each cell contains several smaller components enclosed in a membrane.
ATSDR: Agency for Toxic Substances & Disease Registry - Cite This Source - This Definition
- autologous, cell differentiation, cell (sel), Fibroblast, lysosome, parasite, parasitic
- The basic structural and functional unit in people and all living things. Each cell is a small container of chemicals and water wrapped in a membrane.
MedicineNet.com - Cite This Source - This Definition
- Breastfeeding, Calories, Enzyme, Obesity, Protease, Protein, Sodium
- The fundamental level of structural organization in complex organisms. Eukaryotic cells contain a nucleus (with chromosome s) and cytoplasm with the protein synthesis machinery, bounded by a membrane. Prokaryotic cells have no nucleus.
UN Food and Agriculture Organization - Cite This Source - This Definition
- The lowest denomination of life thought to be possible. Most organisms consist of more than one cell which becomes specialized into particular functions to enable the whole organism to function properly. Cells contain DNA and many other elements to enable the cell to function.
USDA CSREES - Cite This Source - This Definition
- autolysis, cytoplasm, cytoplasmic organelles, cytosol, Eukaryote, lysosome, microbody, nucleo-cytoplasmic ratio, Nucleus, Organelle, sex factor, Signal transduction, syncytium
- The basic unit of any living organism. It is a small, watery, compartment filled with chemicals and a complete copy of the organism's genome. See also genome, nucleus
National Human Genome Research Institute - Cite This Source - This Definition
- The basic unit of any living organism that carries on the biochemical processes of life. See also: genome, nucleus
Human Genome Project - Cite This Source - This Definition
- directed mutagenesis, exogenous DNA, in vitro, In vivo
Convection in the form of a single updraft, downdraft, or updraft/downdraft couplet, typically seen as a vertical dome or tower as in a towering cumulus cloud. A typical thunderstorm consists of several cells.
The term "cell" also is used to describe the radar echo returned by an individual shower or thunderstorm. Such usage, although common, is technically incorrect.
NOAA National Weather Service - Cite This Source - This Definition
- BLDUP, Congestus, Convection, CU, CUFRA, Cumuliform, Cumulus, Cumulus Buildups, Cumulus Congestus, DNS, Flanking Line, TCU, Towering Cumulus, Turkey Tower, Updraft
- In cellular mobile, the geographical area covered by the smaller of: a base station, or a subsystem (sector antenna) of that base station corresponding to a specific logical identification on the radio path. Note: Mobile stations in a cell may be reached by the corresponding radio equipment of the base station. 2. The service area of an individual transmitter location in a cellular system. [47CFR] 3.In communications, a string that contains a header and user information. Note 1: A cell is dedicated to one user for one session. Cells for a given system are usually of fixed length and smaller than a frame, such as 424 bits for a cell, compared to 1024 for a frame. Note 2: In asynchronous transfer mode (ATM) systems, a cell consists of 53 bytes, i.e., a 5-byte header field and a 48-byte information field. Note 3: A cell does not have error-correction capability and is therefore suited for low-BER communications systems, such as digital fiber optic systems. 4. In OSI, a fixed-length block labeled at the Physical Layer of the Open Systems Interconnection--Reference Model (OSI--RM). 5. In computer systems, an addressable, internal hardware location. 5. In computer applications, a single location on a spreadsheet.
ATIS - Cite This Source - This Definition
- asynchronous transfer mode (ATM), cell delay variation, cell delineation, cell header, MLP(multilevel precedence) compatibility mode, normal mode (application layer), overlay cell, unassigned cell