1) Cross-fertilisation 2) Cross-fertilization 3) Cross-fertilization in plants 
Allogamy (cross-fertilization) is a term used in the field of biological reproduction describing the fertilization of an ovum from one individual with the spermatozoa of another. By contrast, autogamy is the term used for self-fertilization. In humans, the fertilization event is an instance of allogamy. Self-fertilization (also known as autogamy) ...
cross-fertilization
• (n.) Fertilization of the pistil of a plant by pollen from another of the same species; cross-fertilization.
Fertilisation by pollen from a flower of the same species
Al·log'a·my noun [ Greek ... other + ... marriage.] (Botany) Fertilization of the pistil of a plant by pollen from another of the same species; cross-fertilization. 
Fertilisation by pollen from a flower of the same species
Type: Term Pronunciation: al-og′ă-mē Definitions: 1. Fertilization of the oocyte of one person by the sperm of another.
[n] - cross-fertilization in plants
allogamy, allogamous 1. Cross-fertilization. 2. Fertilization of the ova of one individual by the spermatozoa of another.allogamous, allogamy Cross fertilization.
See under cross-pollination. Cross-fertilization Term for the transfer of pollen grains from one flower to the stigma of a second flower on another plant (cross-pollination), which causes cross-pollination (xenogamy). In the case of a vine, this can be a neighbouring vine of the same or... Full text
noun cross-fertilization in plants
cross-fertilization in plants (opposed to autogamy).