Trimorph

noun

1. A substance that occurs in three distinct crystalline forms.
2. One of the crystalline forms in which a trimorphic substance occurs.
3. In <em>crystallography</em>, a substance which exhibits trimorphism, or one of the three forms which such a substance presents: thus the term may be applied to titanium dioxid, or to rutile, one of its three forms of crystallization.
4. A substance which crystallizes in three distinct forms, or which has three distinct physical states; also, any one of these distinct forms. See <xref urlencoded="trimorphism">trimorphism</xref>, 1.
5. A substance which <xref>crystallizes</xref> in <xref>three</xref> <xref>distinct</xref> <xref>forms</xref>, or which has three distinct <xref>physical</xref> <xref>states</xref>.