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lava lamp

noun
1.
a decorative type of lamp in which a luminous viscous material moves in constantly changing shapes
Word Origin
C20: from the resemblance of the shapes to molten lava in water
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Contemporary definitions for lava lamp
noun

a glass lamp lit from the bottom and containing a soft gel that moves and grows as the light heats it; also called lava light

Word Origin

from the gel's similarity to volcano lava; created in 1963 by Edward Craven Walker

Usage Note

trademark

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Word Value for lava

7
9
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