Definition of "blue-green" []

• Of a color between blue and green; darker shades are called teal, lighter ones are cyan. (adjective)

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• "To make his case, he puts on a slide show: First he shows images of a living cyanobacterium a microbe sometimes called blue-green algae and highlights some characteristics—long filaments made up of cells with small indentations where they meet."
• "Based on the appearance of "filaments" and other features that resemble microbes, Hoover argues that the meteorites contain fossilized life in the form of cyanobacteria - single-celled organisms also known as blue-green algae."
• "That's because a dense, rapidly reproducing, foam-like slime known as blue-green algae is spreading like wildfire."