[pree-key-vuh, -kah-]
noun, plural precavae [pree-key-vee, -kah-vahy] .
See under vena cava.
(in squids) either of a pair of veins that pass through the kidney to the branchial heart.

1865–70; pre- + (vena) cava

precaval, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

precava pre·ca·va (prē-kā'və, -kä'-)
n. pl pre·ca·vae (-vē)
See superior vena cava.

pre·ca'val adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
vena cava   (vē'nə kā'və)  Pronunciation Key 
Plural venae cavae (vē'nē kā'vē)
Either of two large veins that carry blood with low levels of oxygen to the right atrium of the heart. ◇ The superior vena cava receives blood from the brain and upper limbs or forelimbs. ◇ The inferior vena cava drains blood from the trunk and lower limbs or hindlimbs and is the largest vein in the body.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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