Definitions for "OHSS"
Ovarian Hyper Stimulation Syndrome - A severe over stimulation of the ovaries. It usually occurs after someone has taken fertility medications, especially in the higher doses.
Ovarian hyperstimulation syndrome
This is a side effect that can occur due to the medication that is being taken to stimulate the ovaries, its characteristics can be swollen ovaries which are painful and can also be excess fluid into the abdomen or chest cavity. Generally a patient is observed closely so that OHSS cannot occur.
ICSI - see Intracytoplasmic Sperm Injection