Oligoarthritis Oligoarthritis: Inflammation of four or fewer joints....
Oligoastrocytoma Oligoastrocytoma: A type of malignant brain tumor
that belongs to the category of "mixed" gliomas. Gliomas are brain tumors that begin in glial, or
supportive, cells in the brain or spinal cord. Malignant gliomas are the most
common primary tumors of the central nervous system (the brain and spin...
Oligodactyly Oligodactyly: Fewer than the
normal number of fingers or toes. Oligo- is from the Greek
"oligos" (few or scanty) + -dactyly from the Greek
"dactylos" (finger) = few fingers. Oligodactyly is the
opposite of polydactyly which means too many fingers or
toes....
Oligodendrocyte Oligodendrocyte: A type of cell in the central nervous system. The oligodendrocytes surround and insulate the long fibers (the axons) through which the nerves send their electrical messages.
The term "oligodendrocyte" comes from the fact that through a microscope the cell's projections looked like ...
Oligodendroglioma Oligodendroglioma: A rare slow-growing type of brain tumor that begins in cells called oligodendrocytes, which provide support and nourishment for cells that transmit nerve impulses. Also called an oligodendroglial tumor. ...
Oligohydramnios Oligohydramnios: Scant amniotic fluid: less than usual. ...
Oligomenorrhea Oligomenorrhea: A reduction in number of menstrual periods and/or amount of menstrual flow. ...
Oligonucleotide Oligonucleotide: A small DNA molecule composed of a few nucleotide bases. The term "oligonucleotide" applies similarly to RNA....
Oligonucleotide probe Oligonucleotide probe: A short sequence of nucleotides synthesized to match a region where a mutation is known to occur and then used as a molecular probe to detect the mutation....
Oligopeptide Oligopeptide: A molecule composed of a few amino acids linked to one another. Oligo- means a few....
Oligospermia Oligospermia: Fewer sperm than normal.
Azoospermia, by contrast, means absolutely no sperm at all....
Oliguria Oliguria: Less urination than normal. ...
Oliva Oliva: The olive, a structure in the brain....
Olivae Olivae: The olives, twin structures in the brain....
Olivary Olivary: Pertaining to the olive, a structure in the brain....