"trilateral relations" is a correct and usable phrase in written English.
It is typically used to describe a type of relationship or agreement between three parties. For example, you could say, "The United Nations has established trilateral relations between the major world powers to help promote global peace and stability."
But a more realistic ambition is to establish new trilateral relations.
Canada's prime minister, Stephen Harper, has made no comment on trilateral relations, except to oppose reopening NAFTA.
The president's comments came during a news conference at the end of a summit meeting of North American leaders aimed at increasing cooperation in the region and resolving some of the issues that have long strained trilateral relations among the countries, whose people and economies depend heavily on one another.
Triple Helix arrangements of bi- and trilateral relations can be considered as adaptive ecosystems.
All relevant distributions (of bi- and trilateral relations) are more skewed in Stockholm than in Gothenburg and Malmö.
Ulanowicz (1986 19977) proposed to measure synergy as mutual information in bi- and trilateral relations when developing ascendency theory.
Smith attends also to a trilateral relation, between a spectator, an agent who acts on someone, and the person who is acted on, the 'recipient' of the act.
"We have a special relationship with them and the US, and better trilateral cooperative relations will contribute greatly to the security of the Asia-Pacific area".
When I am acquainted with being triangular and being trilateral and the relation of inclusion holding between them, that can give me knowledge of the necessary truth that triangles are trilateral.
The 'Triple Helix overlay provides a model at the level of social structure for the explanation of mode 2 as an historically emerging structure for the production of scientific knowledge, and its relation to Mode 1', and it is a 'model of "trilateral networks and hybrid organizations" of "university-industry-government relations"' (Etzkowitz and Leydesdorff [2000], pp. 118, 111 112).
Cameron hoped to achieve a breakthrough in relations between Pakistan and Afghanistan when he held a trilateral summit at Chequers in February involving Zardari and Karzai.
