Accretion
1. Increase by addition to the periphery of material of the same nature as that already present; e.g., the manner of growth of crystals.
Synonym: accrementition.
2. In dentistry, foreign material (usually plaque or calculus) collecting on the surface of a tooth or in a cavity.
3. A growing together.
Origin: L. Accretio, fr. Ad, to, – crescere, to grow
Dictionary > Accretions
You will also like...

Still Freshwater & Plants
Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..

Genetic Control – On and Off Genes
Genes are the blueprint of our bodies, a blueprint that creates a variety of proteins essential to any organism's surviv..

Indicator Species and Endangered Species
Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..

Homeostasis of Organism Water Regulation
Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..

Pollution in Freshwater Ecosystems
There are many environmental factors that arise due to the usage of water in one way or another and for every action tha..

Takahē (Porphyrio hochstetteri)
Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..