American Heritage Dictionary
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Century Dictionary
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GNU Webster's 1913
WordNet
(1)
Elsewhere on the web
The idea is to stimulate a rapid blooming of phytoplankton, a microscopic algae that grows on the ocean surface.— Blogger News Network
The first, by a group of researchers from Britain's National Oceanography Centre, led by Raymond Pollard, looked at the idea of dumping iron in the oceans to promote huge blooms of phytoplankton -- tiny algae that consume carbon dioxide as they grow.— Climate Ark Climate Change & Global Warming RSS Newsfeed
The pump is driven by phytoplankton, the tiny plants that constantly convert sunlight and CO2 into more plants, half of which die or are eaten by zooplankton.— EcoEarth.Info Environment RSS Newsfeed
Quagga mussels filter the water and can wipe out phytoplankton, which is the base of the food chain.— Las Vegas Sun Stories: All Sun Headlines

Century Dictionary (1)
Bubble size: how much this word was used in a year
Bubble height: used more or less than expected, vs. all uses evenly distributed
You can expect to see this word a few times a year.
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