• Webster's Revised Unabridged Dictionary
    • n Intercross The process or result of cross fertilization between different kinds of animals, or different varieties of plants. "We have reason to believe that occasional intercrosses take place with all animals and plants."
    • Intercross To cross each other, as lines.
    • Intercross (Biol) To fertilize by the impregnation of one species or variety by another; to impregnate by a different species or variety.
    • ***
Century Dictionary and Cyclopedia
    • intercross To cross reciprocally; specifically, in biology, to fertilize by impregnation of one species or variety by means of another; interbreed.
    • intercross In biology, to become impregnated by a different variety or species, or, in the case of hermaphrodites, by a different individual.
    • n intercross An instance of cross-fertilization.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t., v.i Intercross in-tėr-kros′ to cross mutually: interbreed.
    • ***


In literature:

On the generality of intercrosses between individuals of the same species.
"On the Origin of Species" by Charles Darwin
The difficulty of the "swamping effects of intercrossing" is practically at an end.
"Darwin and Modern Science" by A.C. Seward and Others
"On the Origin of Species" by Charles Darwin
A species varies occasionally in two directions, but owing to their free intercrossing the varieties never increase.
"More Letters of Charles Darwin" by Charles Darwin
But in case of failure to intercross these blossoms that are dependent upon insect help to set fertile seed, what then?
"Wild Flowers Worth Knowing" by Neltje Blanchan
We may even show how a single language intercrosses with race and culture lines.
"Language" by Edward Sapir
A species varies occasionally in two directions, but owing to their free intercrossing they (the variations) never increase.
"Alfred Russel Wallace: Letters and Reminiscences, Vol. 1 (of 2)" by James Marchant
Romanes argues as if "free intercrossing" meant that none would pair like with like!
"Alfred Russel Wallace: Letters and Reminiscences Vol 2 (of 2)" by James Marchant
They would not be readily swamped by intercrossing or averaged off.
"The Outline of Science, Vol. 1 (of 4)" by J. Arthur Thomson
In man's methodical selection, a breeder selects for some definite object, and free intercrossing will wholly stop his work.
"On the Origin of Species by Means of Natural Selection" by Charles Darwin

In science:

A stack of surface bands disperse over an energy range of 0.33 eV with intercrossings just above VBM.
Modification of anatase TiO$_2$(001) surface electronic structure by Au impurity
In particular, these two regimes of weak and strong driving are a generic effect and the effects seen in a two-site system arise in an analogous way such as the two intercrossing quasienergies in the weak driving regime are replaced by a miniband of states.
Photon-assisted transport in semiconductor nanostructures
The observer in Minkowski space who attributes the equal distances (in the 3-dimensional sense) to a certain set of events can follow a simple geometric rule - intercross two spheres with the same radii (hyperboloids in Minkowski space) located in two different centers (Fig.1).
The Notions of Distance and Velocity Modulus in the Some Linear Finsler Spaces