heterovalvate en · ADJ
Etymology
From hetero- + valvate.
Meanings
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(not-comparable) Having different (top and bottom) valves (of a diatom)
Filaments up to 32 cells long were observed, capped with live heterovalvate end-cells where each possessed one of the initial valves.
2015 October 21, “Auxosporulation in Paralia guyana MacGillivary (Bacillariophyta) and Possible New Insights into the Habit of the Earliest Diatoms”, in PLOS ONE, →DOI: