Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
One of the Diatomaceæ, a family of minute unicellular Alg¨aving a siliceous covering of great delicacy, each individualmultiplying by spontaneous division. By some authors diatoms arecalled Bacillariæ, but this word is not in general use.
Share your knowledge with the community
Browse our collection of 300,000+ community-written definitions