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Either one of the two forms of a dimorphous substance; as, calcite and aragonite are dimorphs.

Having the property of dimorphism; dimorphous.

erry), or when there are two forms of one or both sexes of the same species of butterfly. Dimorphism is the condition of the appearance of the same species under two dissimilar forms. Darwin.

Characterized by dimorphism; occurring under two distinct forms, not dependent on sex; dimorphic.

Isodimorphous.

Isomorphism between the two forms severally of two dimorphous substances.

Having the quality of isodimorphism.

A free-swimming, dimorphic, sexual form of certain species of Nereis.

ion, in one species of plants, of only one kind of flowers; -- opposed to heteromorphism, dimorphism, and trimorphism.

Bot.), the fertilization of pistils by stamens not of their own length, in heterogonously dimorphic and trimorphic flowers. Darwin.

of development; of the same or of an essentially similar type of structure; -- opposed to dimorphic, trimorphic, and polymorphic.

A leguminous tree of Guiana and Trinidad (Dimorphandra excelsa); also, its timber, used in shipbuilding and making furniture.

One of the dimorphic forms of the species of Dicyemata, which produced vermiform embryos; -- opposed to Ant: rhombogene.

throad of a gamopetalous corolla, while the stamens are concealed in the tube; -- said of dimorphous flowers. The opposite of Ant: thrum-eyed.

The property of crystallizing under two or more distinct fundamental forms, including dimorphism and trimorphism.

Of or pertaining to the seasons. Seasonal dimorphism (Zoöl.), the condition of having two distinct varieties which appear at different seasons, as certain species of butterflies in which the spring brood differs from the summer or autumnal brood.

ourse, connection, or commerce; sexual desire; sexual diseases; sexual generation. Sexual dimorphism (Biol.), the condition of having one of the sexes existing in two forms, or varieties, differing in color, size, etc., as in many species of butterflies which have two kinds of females. -- Sexual method (Bot.), a metho…

Of, pertaining to, or characterized by, trimorphism; -- contrasted with monomorphic, dimorphic, and polymorphic.

ferent shapes or proportions of corresponding parts; -- contrasted with polymorphism, and dimorphism. Heterogonous trimporphism (Bot.), that condition in which flowers of plants of the same species have three different lengths of stamens, short, medium, and long, the blossoms of one individual plant having short and me…