GLOSSARY

140 terms and definitions

Browse

Easily browse glossary terms from any webpage on this site:
  1. Choose "GLOSSARY" from the top navigation menu
  2. Pick from the A-Z index.

About these terms

Many diatom terms are specific to a particular taxonomic group, such as a family or genus. Terms may also be used for structures that may not be homologous. For example, the "stigma" of Gomphonema is a different structure from the "stigma" of Luticola. When describing valve shape, we encourage contributors to agree on using the same term for a feature. At the same time, we recognize that contributors may use shape terms differently. For example, the "subrostrate ends" of one contributor may be somewhat different than another. In these cases, images are more helpful.

We welcome additions to the glossary, but please note that we are limiting our terms to those used on this site. We are not trying to build an exhaustive list. If you think we've missed a critical term for a particular taxon, please send us your definition with source, publication, etc. (Contact Us).

Search

Find glossary terms via the search box directly above. Use any combination of search terms from the following categories:
  Glossary Term, either our preferred term or an alternative
  Definition, keywords used in the definition

To search for a phrase, place the words inside double quotes. For example:
  "external valve"

To search for entries without certain words or phrases, place a negative sign ("-") before it. For example:
  "external valve" -striae