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Glossary

Glossary

Every technical term used here, defined.

Terms
1,702
With an illustration
23
Cross-references
66
Used in profiles
1,807

176 terms beginning with C · showing 161–176

  1. cultivar

    Plant or group of plants produced and maintained by cultivation.

  2. cultivate

    To prepare or prepare and use to grow plants; to improve the growth of.

  3. cultivation

    The state of being cultivated; to artificially plant, tend, improve and harvest crops and other plants.

    Used in 6 profiles

  5. culture

    Cultivation of soil or other growth medium; captive breeding of animals or plants; growing of microorganisms or other live tissue in a nutrient medium or when referring to such a colony.

    Used in 3 profiles

  7. cutaneous

    Of, relating to, or affecting the skin.

  8. CW number

    Coding system used to organise and refer to unidentified catfishes, though not necessarily undescribed or distinct species, of the genus Corydoras. Works in tandem with the similar C number system. The system was invented by Ian A. M. Fuller in reference to his website 'Corydoras World' but is now in popular use worldwide.

    Used in 65 profiles

  9. cyanobacteria

    Phylum of generally blue-green coloured bacteria, often confused with algae, that obtain their energy via photosynthesis and include unicellular and colonial species. Some species occur commonly in aquaria where they're normally regarded as pests.

    Used in 21 profiles

  10. cycling

    Process of maturing a biological filter to some extent prior to the addition of livestock.

  11. cyclo-ctenoid scale

    Scale type with morphology intermediate between cycloid and ctenoid, possessing reduced ctenii that are smooth to the touch. Common to certain groups of fishes, e.g., characids.

    Used in 3 profiles

  12. cycloid scale

    Scale type having a smooth margin.

    Used in 27 profiles

  13. Cyclops

    Genus of freshwater copepods characterised and so named by possession of a single, large, median eye. Sometimes cultured as food for fry or very small fishes.

    Used in 8 profiles

  14. cyst

    In biology, a small sac forming a capsule within which certain organisms remain during the larval or dormant stage.

    Used in 2 profiles

  15. cytogenetics

    Branch of genetics biology concerned with cell structure and function, particularly that of chromosomes.

  16. cytology

    Branch of biology concerned with the structure and function of plant and animal cells