Conjoint (adjective)

1. Joined or connected together; combined.
2. United or combined in a single unit or system.

Origin:

Late 16th century: from latin conjunctus "joined together", from the verb conjungere.

Examples:

1. The conjoint muscles in the arm work together to produce smooth, coordinated movements.
2. The conjoint panels of the wall were fitted together precisely to form a seamless surface.
3. The conjoint efforts of the search and rescue team finally succeeded in locating the missing hiker.
4. The conjoint examination of the patient revealed a complex array of medical problems.
5. The conjoint ownership of the company required close cooperation and coordination between the partners.