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单词 plethysmograph
释义
ple·thys·mo·graph (plĕ-thĭzmə-grăf, plə-)
n.
An instrument that measures variations in the size of an organ or body part on the basis of the amount of blood passing through or present in the part.

[Greek plēthusmos, increase (from plēthūnein, to increase, from plēthūs, quantity, from plēthein, to be full; see pelə-1 in the Appendix of Indo-European roots) + -GRAPH.]

ple·thysmo·graphic adj.
plethys·mogra·phy (plĕthĭz-mŏgrə-fē) n.
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