The kingdom of single-celled organisms without a cell nucleus (see also prokaryotes). Monera are the most primitive living things and are thought to have been the first to evolve.
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
monera
any of the prokaryotes (bacteria and archaea), constituting the kingdom Monera.
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