pre·clin·i·cal

[pree-klin-i-kuhl]
adjective Medicine/Medical.
of or pertaining to the period prior to the appearance of the symptoms.

Origin:
1930–35; pre- + clinical

pre·clin·i·cal·ly, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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World English Dictionary
preclinical (priːˈklɪnɪkəl) [Click for IPA pronunciation guide]
 
adj
1.  of, relating to, or occurring during the early phases of a disease before accurate diagnosis is possible
2.  of, relating to, or designating an early period of scientific study by a medical student before practical experience with patients
 
pre'clinically
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Preclinical is always a great word to know.
So is bezoar. Does it mean:
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
American Heritage
Medical Dictionary

preclinical pre·clin·i·cal (prē-klĭn'ĭ-kəl)
adj.

  1. Of or relating to the period of a disease before the appearance of symptoms.

  2. Of or being a period in medical education before the student is involved with patients and clinical work.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
The device, which is in preclinical tests in mice, can be implanted in inoperable tumors during a routine biopsy.
Preclinical research suggests that these cells induce growth of new cells in heart muscle.
He also has significant experience in preclinical and clinical development.
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