satellite

satellite /sat·el·lite/ (sat´e-lit?)

1. a vein that closely accompanies an artery, such as the brachial.

2. a minor, or attendant, lesion situated near a larger one.

3. a globoid mass of chromatin attached at the secondary constriction to the ends of the short arms of acrocentric autosomes.

4. exhibiting satellitism.

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sat·el·lite (stl-t)

n.

1. A minor structure accompanying a more important or larger one.

2. A short segment of a chromosome separated from the rest by a constriction, typically associated with the formation of a nucleolus.

3. A colony of microorganisms whose growth in culture medium is enhanced by certain substances produced by another colony in its proximity.

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satellite

1. in genetics, a knob of chromatin connected by a stalk to the short arm of certain chromosomes.

2. a minor, or attendant, lesion situated near a large one.

3. a vein that closely accompanies an artery.

4. exhibiting satellitism.

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satellite cell

cells present in nervous and muscle tissue, whose numbers diminish with age, which are involved in repair when damage occurs. They are capable of migration, reorientation, can proliferate, form myoblasts and myotubes, and form long cytoplasmic tails that act as tethers when they migrate.

satellite DNA

see deoxyribonucleic acid.