[ 'sɒlɪdəs ]
■ noun ( plural solidi -dʌɪ )
1》 chiefly Brit. another term for slash (in sense 3).
2》 Chemistry a curve in a graph of the temperature and composition of a mixture, below which the substance is entirely solid.
3》 historical a gold coin of the later Roman Empire.
Origin
L., lit. 'solid'; sense 3 is from L. ~ (nummus) .