4D ultrasound
plural of paleodont
A surname.
(historical) An office in the Court of Exchequer in which the clerk of the pipe made out crown-land leases.
(uncountable) A medical ultrasound technique that produces a sequence of 3D images over time. / (countable) An image so produced.
妊娠中の両親は、妊婦検診での4D超音波検査で赤ちゃんが動いたりあくびをしたりするのを見ました。
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