Encyclopedia

mercury

phys. 1. The chemical element of atomic number 80, a heavy silvery-white metal which is liquid at ordinary temperatures. 2. A small planet that is the closest to the sun […]

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meristem

biol. Plant tissue whose cells actively divide to produce new tissues that cause the plant to grow. The cells of the meristem are not specialized but can become specialized to […]

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Merkel cell

biol. A special type of cell found right below the epidermis. These cells are very close to the nerve endings that receive the sensation of touch and may be involved […]

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