A family of diatoms that includes the genus Fragilaria, characterized by delicate silica-based cellular structures.
From Fragilaria (genus) + -aceae (family suffix in taxonomy). Follows Linnaean naming convention for biological families.
In taxonomy, '-aceae' always marks a plant or organism family—it's like a suffix that tells scientists 'you're looking at a whole family of related creatures,' making the name itself a structural clue.
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