Category: Oa-Oq

In medicine, the person who is ready to respond, the one on duty. As in “Who is the doctor on call this weekend?” or “This is the on call schedule.”

The subagency of the United Nations (UN) that is concerned with international health. Abbreviated WHO. Also known as Organisation Mondiale de la Sant’ (OMS).

Abbreviation for the Organisation Mondiale de la Sante, the French name for the World Health Organization (WHO).

A sheet of fat that is covered by peritoneum. The greater omentum is attached to the bottom edge of the stomach and hangs down in front of the intestines. Its other edge is attached to the transverse colon. The lesser omentum is attached to the top edge of the stomach and extends to the undersurface of the liver.

A class of essential fatty acids found in fish oils, especially from salmon and other cold-water fish, that acts to lower the levels of cholesterol and LDL (low-density lipoproteins) in the blood. (LDL cholesterol is the “bad” cholesterol.) EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) are the two principal omega-3 fatty acids. The body has a limited ability to manufacture EPA and DHA by converting the essential…

Suffix meaning a swelling or tumor. Many words in medicine end in -oma. Some examples include adenoma, atheroma, carcinoma, condyloma, fibroma, glaucoma, glioma, granuloma, hemangioma, hematoma, lipoma, lymphoma, melanoma, meningioma, myeloma, neuroblastoma, neuroma, papilloma, retinoblastoma, sarcoma, and xanthoma. The medical suffix -oma came from the Greek suffix -oma which was used in a different way — to transform a verb into a noun.

Less urination than normal.

Fewer sperm than usual. Azospermia, by contrast, means absolutely no sperm at all.

Too little amniotic fluid. The opposite of polyhydramnios: Too much amniotic fluid.

Means just a few or scanty. From the Greek “oligos’, few, scanty. Examples of terms starting with oligo- include oligodactyly (few fingers), oligohydramnios (too little amniotic fluid) and oligospermia (too few sperm).