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单词 nannandrium
释义

nannandriumn.

Brit. /naˈnandrɪəm/, U.S. /næˈnændriəm/
Inflections: Plural nannandria.
Origin: A borrowing from Latin. Etymon: Latin nannandrium.
Etymology: < scientific Latin nannandrium (J. B. De-Toni Sylloge Algarum (1889) I. 16) < ancient Greek νάννος , variant of νᾶνος dwarf (see nano- comb. form) + scientific Latin -andrium ( < ancient Greek ἀνδρ- , ἀνήρ man (see andro- comb. form) + classical Latin -ium : see -y suffix4). Compare earlier nannandrous adj.Scientific Latin nannandrium was probably formed as an alteration of the earlier post-classical Latin noun nannandres (plural; V. B. Wittrock 1875, in Prodromus Monographiae Oedogoniearum 2 (in Nova Acta Regiae Societatis Scientiarum Upsaliensis 9)).
Botany.
The single-celled male plantlet (dwarf male) of nannandrous green algae.
ΚΠ
1916 G. S. West Algae I. 396 The androgonidia come to rest either on the wall of the oogonium or on the supporting cells and on germination each produces a ‘dwarf male’ or nannandrium.
1962 Amer. Jrnl. Bot. 49 181/1 Stages III and IV, development of dwarf males (nannandria).
1995 C. van den Hoek et al. Algae 388/2 The androspores, now attached to the female filaments, develop into small unicellular male plantlets: the dwarf males or nannandria.
This is a new entry (OED Third Edition, June 2003; most recently modified version published online March 2022).
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