Alga and Diatom

Alga noun - Primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves.

Diatom and alga are semantically related. In some cases you can replace term "Diatom" with "Alga", this nouns are similar.

Nearby Word: algal

Diatom noun - Microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica.

Alga and diatom are semantically related. You can use "Alga" instead a noun "Diatom".

Nearby Word: diatomic