| 单词 | notochord |
| 释义 | notochord (once / 51389 pages) n WORD FAMILY notochord: notochords USAGE EXAMPLESThe notochord previously had been identified as the gut. Reuters(Mar 16, 2016) “We discovered that this feature was the notochord, the primitive backbone,” said Dr. McCoy. New York Times(Mar 16, 2016) But several fossils revealed that the band bore the hallmark traits of a notochord, the rubbery tube surrounding some primitive vertebrates’ spinal cords. National Geographic(Mar 16, 2016) n a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates Hypo|Hyper urochord a notochord of a larval tunicate typically confined to the caudal region back, backbone, rachis, spinal column, spine, vertebral column the series of vertebrae forming the axis of the skeleton and protecting the spinal cord |
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