diatom

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Related to Diatomaceae: Diatomea

di·a·tom

(dī'ă-tom),
An individual of microscopic unicellular algae, the shells of which comprise a sedimentary infusorial earth.
[G. diatomos, cut in two]

diatom

/di·a·tom/ (di´ah-tom) a unicellular microscopic form of alga having a cell wall of silica.

diatom

(dī′ə-tŏm′)
n.
Any of various microscopic one-celled or colonial heterokonts of the class Bacillariophyceae that are photosynthetic, have a silica cell wall made up of two interlocking parts, and form an important component of phytoplankton.

diatom

a member of the BACILLARIOPHYCEAE.
References in periodicals archive ?
New species of Diatomaceae, collected by the United States Exploring expeditions under the command of Capt.
Remarks on the Marine Diatomaceae Found at Hong Kong with descriptions of New Species.
Notes on new and rare species of Diatomaceae of the United States seabord.
A history of infusoria, including the Desmidiaceae and Diatomaceae, Bristish and Foreign.