[ sol-i-duh s ]
/ ˈsɒl ɪ dəs /

noun, plural sol·i·di [sol-i-dahy] /ˈsɒl ɪˌdaɪ/.

a gold coin of ancient Rome, introduced by Constantine and continued in the Byzantine Empire; bezant.
(in medieval Europe) a money of account equal to 12 denarii.Compare sol2.

Nearby words

  1. solidification,
  2. solidify,
  3. solidity,
  4. solidly,
  5. solidungulate,
  6. solifidian,
  7. solifluction,
  8. solifugid,
  9. solihull,
  10. soliloquist

Origin of solidus

1350–1400; Middle English < Late Latin solidus (nummus) a solid (coin), a gold (coin)


[ sol-i-duh s ]
/ ˈsɒl ɪ dəs /

noun Physical Chemistry.

(on a graph of temperature versus composition) the curve connecting the temperatures at which a solid solution is in equilibrium with its vapor and with the liquid solution, and therefore connecting melting temperatures of solid solutions.
Compare liquidus.

Origin of solidus

1900–05; < Latin: solid Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for solidi

British Dictionary definitions for solidi


/ (ˈsɒlɪdəs) /

noun plural -di (-ˌdaɪ)

a technical name for slash (def. 12)
a gold coin of the Byzantine empire

Word Origin for solidus

C14: from Late Latin solidus (nummus) a gold coin (from solidus solid); in Medieval Latin, solidus referred to a shilling and was indicated by a long s, which ultimately became the virgule

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for solidi



late 14c., plural solidi, used of both English shilling and Roman gold coin, from Late Latin solidus, an imperial Roman coin (worth about 25 denarii), from nummus solidus, literally "solid coin" (see solid (adj.)).

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for solidi


[ sŏlĭ-dəs ]

Plural solidi (sŏlĭ-dī′)

The maximum temperature at which all components of a mixture (such as an alloy) can be in a solid state. Above the solidus some or all of the mixture will be in a liquid state. See illustration at eutectic. Compare liquidus.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.