ˌplu̇rəˈsigmə noun
Usage: capitalized
Etymology: New Latin, from pleur- + Greek sigma; from the shape of the diatoms
: a genus of diatoms of the family Naviculaceae
ˌplu̇rəˈsigmə noun
Usage: capitalized
Etymology: New Latin, from pleur- + Greek sigma; from the shape of the diatoms
: a genus of diatoms of the family Naviculaceae
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012