The medical term for a male and a female uniting together is coitus.
It depends on how you use the word. If you are talking about medicine there is a word synergism that means two drugs unite to make a better effect. Other words like combination, or conjoin also exist. Please elaborate so I can further answer your question.
anastomosis
Platelet aggregation is the medical term for the process in which platelets stick together.
Osteorrhaphy is the medical term meaning suturing or wiring together of bones.
Approximate (rhymes with "date") is the medical term meaning to bring close together or into apposition.
Adhesion is the medical term meaning process of being stuck together, as it might relate to cells, tissues, or organs. In terms of two fetuses, the medical term is "conjoined."
The term "cohesion" refers to the action of cohering, sticking together, or uniting together. In chemistry and physics, the word "cohesion" is referring to a force that is molecular between particles within a body or substance that unites them.
The term "cohesion" refers to the action of cohering, sticking together, or uniting together. In chemistry and physics, the word "cohesion" is referring to a force that is molecular between particles within a body or substance that unites them.
Symphysis
Excited together? That's what they say in Chemistry.
Constriction is the medical term meaning normal, physiologic narrowing. Stenosis is the medical term meaning abnormal narrowing.
mesentary
uniting