| fourth |
following the third position; number four in a countable series one-fourth: one of four equal parts; "a quarter of a pound" the musical interval between one note and another four notes away from it coming next after the third and just before the fifth in position or time or degree or magnitude; "the quaternary period of geologic time extends from the end of the tertiary period to the present" fourthly: in the fourth place; "fourthly, you must pay the rent on the first of the month"
출처: wordnet.princeton.edu/perl/webwn
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| fourth ventricle |
an irregular ventricle between the third ventricle and the central canal of the spinal cord
출처: wordnet.princeton.edu/perl/webwn
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| fourth circulation |
the continuous movement of lymphocytes from their sources in all the hematopoietic and connective tissues to the blood passing through all the tissues and organs, then to the lymph nodes, then into the lymph of the thoracic duct, and into the blood again.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| fourth |
The fourth degree of the diatonic scale. Also, the interval formed by a given tone and the fourth tone above or below it, eg c up to f; c down to g. Intervals of the fourth may be perfect, diminished, or augmented.
출처: library.thinkquest.org/2791/MDCTARY/D-L.htm
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| fourth nerve |
Trochlear nerve. Either of the fourth pair of cranial nerves that arise from the dorsal (near, on or toward the back) aspect of the brain stem just below the inferior colliculus and supply the superior oblique muscle of the eye with motor fibers.
출처: virtualtrials.com/dictionary.cfm
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