||The absence of the menstruation in a woman of reproductive age. Primary amenorrhoea – the initial absence of the menstruation; secondary amenorrhoea – the absence of the menstruation at least for the last six month.
||A male sex hormone.
||Abnormal numbers of specific chromosomes or chromosome sets exist within the nucleus.
||Occurring, existing, or performed before birth, during pregnancy.
|Artificial insemination (AI)
||Placing sperm into the vagina or uterus using artificial means rather than by natural copulation. Nowadays, intrauterine insemination is only used.
||The opening of the embryo’s covering using, for example, a laser aimed at facilitating implantation of the embryo.
||Reduced sperm motility.
||A non-sex chromosome. In humans, there are 22 pairs of autosomes.
||The medical condition of a man not having any measurable level of spermatozoa in his semen. Azoospermia has two forms: abstructive azoospermia and non-obstructive azoospermia.