Also found in: Dictionary, Encyclopedia, Wikipedia.
Existence under three forms, as in holometabolous insects that pass through larval, pupal, and imago stages.
[tri- + G. morphē, form]
Farlex Partner Medical Dictionary © Farlex 2012
trimorphismthe property exhibited by certain species of having or occurring in three distinct forms.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005