It’s a slurry. Metal cannot be a liquid at room temperature. Well, except for Mercury.
Teo says it’s a "eutectic" blend of Gallium, Indium and Tin, similar to what is used as a replacement for Mercury in thermometers.
eu·tec·tic yo͞oˈtektik/ CHEMISTRY
adjective
1.
relating to or denoting a mixture of substances (in fixed proportions) that melts and solidifies at a single temperature that is lower than the melting points of the separate constituents or of any other mixture of them.
noun
1.
a eutectic mixture.
slurry. /ˈslʌrɪ/ noun (pl) -ries. a suspension of solid particles in a liquid, as in a mixture of cement, clay, coal dust, manure, meat, etc with water.
So you’re saying that one, or more, of the above elements is suspended as solid particles?