All Words Glossary

Glossary of Anatomy Terms
beginning with letter O
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oblique Tweet Definition of oblique Like Definition of oblique on Facebook
  1. (geometry) An oblique line.
  2. (rare) The punctuation sign "/"
verb (obliques, obliquing, obliqued)
  1. To deviate from a perpendicular line; to move in an oblique direction.
  • Projecting his person towards it in a line which obliqued from the bottom of his spine. - Sir. W. Scott.
    1. (military) To march in a direction oblique to the line of the column or platoon; " formerly accomplished by oblique steps, now by direct steps, the men half- facing either to the right or left.
  1. Not erect or perpendicular; neither parallel to, nor at right angles from, the base; slanting; inclined.
  • It has a direction oblique to that of the former motion. - Cheyne.
    1. Not straightforward; indirect; obscure; hence, disingenuous; underhand; perverse; sinister.
  • The love we bear our friends . . . Hath in it certain oblique ends. - Drayton.
  • This mode of oblique research, when a more direct one is denied, we find to be the only one in our power. - De Quincey.
  • Then would be closed the restless, oblique eye. <br /> That looks for evil, like a treacherous spy. - Wordworth.
    1. Not direct in descent; not following the line of father and son; collateral.
    His natural affection in a direct line was strong, in an oblique but weak. - Baker.
    1. (botany, of leaves) Having the base of the blade asymmetrical, with one side larger or extending further than the other.
    occipital bone Tweet Definition of occipital bone Like Definition of occipital bone on Facebook
    1. The bone at the back of the skull.
    occipital lobe Tweet Definition of occipital lobe Like Definition of occipital lobe on Facebook
    1. (anatomy) one of the four major divisions of the cerebrum of the brain, located at the back of the head
    occiput Tweet Definition of occiput Like Definition of occiput on Facebook
    noun (plural:occipita or occiputs)
    1. (anatomy) The back of the head or skull.
    oculus Tweet Definition of oculus Like Definition of oculus on Facebook
    noun (oculi)
    1. A window that has an oval or circular shape (as of an eye).
    2. A circular hypaethral opening at the apex of a dome.
    One can glimpse the sky through the of the Pantheon in Rome.
    olfactory Tweet Definition of olfactory Like Definition of olfactory on Facebook
    1. Concerning the sense of smell.
    Oral Tweet Definition of Oral Like Definition of Oral on Facebook
    1. A male given name, ultimately derived from Aurelius
    organ Tweet Definition of organ Like Definition of organ on Facebook
    1. The largest parts of an organism that are composed of tissues that perform similar functions.
    2. (musici) A musical instrument that has multiple pipes which play when a key is pressed.
    3. An official magazine, newsletter, or similar publication of an organization.
    ossicle Tweet Definition of ossicle Like Definition of ossicle on Facebook
    1. (anatomy) A small bone (or bony structure), especially one of the three of the middle ear.
    The incus is one of the three auditory ossicles.
    • 1836: The eyeballs were surrounded by a ring of bones, the sclerotic , which probably protected their eyes when diving abruptly for prey. &mdash; William Buckland, Geology and Mineralogy, Considered with Reference to Natural Theology, vol. 1, William Pickering, 1836, p. 174
      1. (zoology) Bone-like joint or plate, especially:
  • one of numerous small calcareous structures forming the skeleton of certain echinoderms, as the starfishes;
  • one of the hard articuli or joints of the stem or branches of a crinoid or encrinite;
  • one of the several small hard chitinous parts or processes of the gastric skeleton of crustaceans, as in the stomach of a lobster or crawfish.
  • The skeleton of echinoderms is made of ossicles, linked to each other via muscles and connective tissue.
    outer ear Tweet Definition of outer ear Like Definition of outer ear on Facebook
    1. (anatomy) The outer portion of the ear which includes the auricle and the ear canal and leads to the eardrum.

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