process
Natural outgrowth or projection of an organism or organic structure.
Used in 334 profiles
Results for “process”
Ichthyological terms, not general ones.
processus dentiformis
Tooth-like projection in the middle of the upper jaw in certain loach genera which may fit into a notch in the lower jaw. Also referred to as dentiform process.
Used in 16 profiles
ascending process
A vertical process on the anterior part of the premaxillary bone in most teleosts.
Used in 4 profiles
humeral process
Bony process extending posteriorly from the pectoral girdle, above the base of the pectoral fin. Present only in certain fishes.
Used in 8 profiles
axillary process
A modified, often elongate, scale or group of scales located at the base of the pectoral or ventral fins in some fishes.
decomposition
Natural, ecological process in which organic material is broken down into simpler substances which may then be used by other organisms. Typically biotic and carried out by microbes, worms, and other organisms but can also be abiotic and occur via chemical or physical processes such as oxidation or hydrolysis.
Used in 204 profiles
deionisation
Purification process, often abbrevaited to DI, by which mineral ions are removed from water, usually via ion exchange over a specialised type of resin. The process does not remove non-ionic molecules thus organic cells such as bacteria tend to remain. Often used in conjunction with reverse osmosis to produce more-or-less pure water which normally requires a degree of remineralisation before being used in aquaria.
foam fractionation
Chemical process whereby hydrophobic molecules are removed from a liquid via rising columns of foam, e.g., the process of organic-waste removal taking place within a protein skimmer.
reduction
Chemical process whereby an atom or ion gains electrons and undergoes a subsequent increase in valence; the act or process of being reduced. Opposite of oxidation.
Used in 60 profiles
acclimation
Adaptation to a new climate or environment. Used in reference to the process of slowly introducing an animal to a new environment, e.g., when adding new fish or invertebrates to an aquarium. Same meaning as acclimatisation.
Used in 35 profiles
activated carbon
Processed, porous, highly adsorptive form of carbon also known as activated charcoal or active carbon. Used in aquaria to remove toxins such as chlorine, chloramine, some heavy metals, and especially organic molecules, but exerts no action on ammonia, nitrite, nitrate, phosphate or inorganic salts. Since it has a finite surface area it requires periodic replacement if employed long-term, and should be removed if a tank is being treated as it will remove most medications. Cannot be 'recharged' by heating in a microwave or domestic oven.
adsorption
The process by which molecules of a substance are attracted to and accumulate on the surface of another substance, such as a solid, but do not enter it. Activated carbon is highly adsorptive.
aeration
The process of supplying with additional air or exposing to air circulation.
Used in 8 profiles
air stone
Processed piece of porous stone, glass, limewood, ceramic or synthetic material that is attached to the end of a length of airline and used to diffuse air into an aquarium in order to increase aeration. Available in a large range of shapes and sizes.
Used in 87 profiles
anastomose
To undergo the process of anastomosis.
Used in 5 profiles
anastomosis
The connection of separate parts of a branching system to form a network. Sometimes used to describe the process by which a relatively regular, e.g. striped, patterning in juveniles of certain fishes breaks up as they mature.
Used in 6 profiles
aquascaping
The process of or hobby concerned with creating an aquascape or aquascapes.
Used in 24 profiles
barbel
A slender, whiskerlike, external process on the jaw or other part of the head of certain fishes used for touch and taste. Also used to refer to European members of the cyprinid genus Barbus.
Used in 319 profiles
biochemistry
The chemical composition of an organism, living system or biological entity; the study of chemical substances and processes occurring within living organisms.
cilium
Microscopic, hairlike process formed on the surface of some cells and unicellular organisms. Capable of rhythmical beating and used for movement by some microorganisms.