syzygy

noun

1. 1

   An alignment of three celestial bodies (for example, the Sun, Earth, and Moon) such that one body is directly between the other two, such as occurs at an eclipse.

2. 2

   An archetypal pairing of contrasexual opposites, symbolizing the communication of the conscious and unconscious minds.

3. 3

   A relation between generators of a module.

4. 4

   The fusion of some or all of the organs.

5. 5

   The association of two protozoa end-to-end or laterally for the purpose of asexual exchange of genetic material.

6. 6

   The pairing of chromosomes in meiosis.