trimorphism
noun
the occurrence of three forms distinct in structure, coloration, etc., among animals of the same species.
trimorphic
-
a word derived from
trimorphism.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Lastly, in the trimorphic Pontederia the ratio is 100 to 88; the anthers from the longest stamens in the short-styled form being compared with those from the shortest stamens in the long-styled form.
From The Different Forms of Flowers on Plants of the Same Species by Charles Darwin
Therefore with trimorphic species six of the eighteen unions yield legitimate offspring, and twelve yield illegitimate offspring.
From The Different Forms of Flowers on Plants of the Same Species by Charles Darwin
But there is another set of plants, the trimorphic, in which the styles and stamens have each three forms—long, medium, and short, and in these it is possible to have eighteen different crosses.
From Darwinism (1889) by Alfred Russel Wallace
Some facts communicated to me by Fritz Muller afford excellent evidence of the utter sterility of one of the forms of certain trimorphic species of Oxalis, when growing isolated.
From The Different Forms of Flowers on Plants of the Same Species by Charles Darwin
No one has compared the legitimate and illegitimate offspring of any trimorphic species in this genus.
From The Different Forms of Flowers on Plants of the Same Species by Charles Darwin
