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Drugs and diseases reference index

Drugs and diseases reference index
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Medical Dictionary Definitions A-Z List

Medical Dictionary Definitions A - Z - «O»:

  1. Oligoarthritis Oligoarthritis
    Oligoarthritis: Inflammation of four or fewer joints....
  2. Oligoastrocytoma 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...
  3. Oligodactyly 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....
  4. Oligodendrocyte 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 ...
  5. Oligodendroglioma 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. ...
  6. Oligohydramnios Oligohydramnios
    Oligohydramnios: Scant amniotic fluid: less than usual. ...
  7. Oligomenorrhea Oligomenorrhea
    Oligomenorrhea: A reduction in number of menstrual periods and/or amount of menstrual flow. ...
  8. Oligonucleotide Oligonucleotide
    Oligonucleotide: A small DNA molecule composed of a few nucleotide bases. The term "oligonucleotide" applies similarly to RNA....
  9. Oligonucleotide probe 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....
  10. Oligopeptide Oligopeptide
    Oligopeptide: A molecule composed of a few amino acids linked to one another. Oligo- means a few....
  11. Oligospermia Oligospermia
    Oligospermia: Fewer sperm than normal. Azoospermia, by contrast, means absolutely no sperm at all....
  12. Oliguria Oliguria
    Oliguria: Less urination than normal. ...
  13. Oliva Oliva
    Oliva: The olive, a structure in the brain....
  14. Olivae Olivae
    Olivae: The olives, twin structures in the brain....
  15. Olivary Olivary
    Olivary: Pertaining to the olive, a structure in the brain....