succus

[sŭkəs]
n. pl. suc•ci (sŭkī, -sī)
  1. A fluid, such as gastric juice or vegetable juice, contained in or secreted by living tissue. No longer in technical use.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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Historical Examples of succus