A minute fragment or quantity of matter; the smallest perceptible or discernible part of an aggregation or mass; (formerly often) an atom or molecule.
| 单词 | θ71595 |
| 释义 | the world > matter > chemistry > atomic chemistry > [noun] > atoms > physical atom (2) particlea1398 A minute fragment or quantity of matter; the smallest perceptible or discernible part of an aggregation or mass; (formerly often) an atom or molecule. atom1555 Originally (without explicit reference to Greek philosophy): each of the particles of which matter is ultimately composed, aggregates of which… |
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