ベース

Etymology 1
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Noun

 * 1) base bottom, foundation
 * 2) base something on which something else rests
 * 3)  base

Etymology 2
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Noun

 * 1)  bass low spectrum of sound
 * 2) bass musical instrument
 * 1) bass musical instrument

Etymology 3
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Noun

 * 1) BACE beta-site APP cleaving enzyme