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sublethal

[suhb-lee-thuh l]
adjective
  1. almost lethal or fatal: a sublethal dose of poison.
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Origin of sublethal

First recorded in 1890–95; sub- + lethal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
sublethal in Medicine

sublethal

(sŭb-lē′thəl)
adj.
  1. Not sufficient to cause death.
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Related formssub•le′thal•ly adv.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.