In the case of free parasites, a well-developed cyst is secreted by the syzygy, which rotates and gradually becomes spherical.
I have a sneaking friendliness even now for anyone to whom the word ‘syzygy’ carries no special meaning.
syzygy syz·y·gy (sĭz'ə-jē)
The association of gregarine protozoa end-to-end or in lateral pairing without sexual fusion.
The pairing of chromosomes in meiosis.