Solidus (Latin for "solid") may refer to:

• Solidus (coin), a Roman coin of nearly solid gold
• Solidus (punctuation), or slash, a punctuation mark
• Solidus (chemistry), the line on a phase diagram below which a substance is completely solid
• Solidus Snake, a character in Metal Gear Solid 2: Sons of Liberty

This disambiguation page lists articles associated with the title Solidus.
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Look up solidus in Wiktionary, the free dictionary.