sap 2 / sæp / Show Spelled Pronunciation [ sap ] Show IPA noun, verb, sapped, sap⋅ping. –noun 1. Fortification . a deep, narrow trench constructed so as to form an approach to a besieged place or an enemy's position.
–verb (used with object) 2. Fortification . a. to approach (a besieged place or an enemy position) by means of deep, narrow trenches protected by gabions or parapets.
b. to dig such trenches in (ground).
3. to undermine; weaken or destroy insidiously.
–verb (used without object) 4. Fortification . to dig a sap.
Origin: 1585–95; < F
sape (n.), deriv. of
saper to dig a trench < It
zappare, a military term, based on
zappa hoe (cf. dial. It
zappo he-goat < ?)
Synonyms: 3. impair, enfeeble, deplete, exhaust, enervate.
sap 1 (sāp) n.
The watery fluid that circulates through a plant, carrying food and other substances to the various tissues.
The fluid contents of a plant cell vacuole.
An essential bodily fluid.
Health and energy; vitality.
Slang A gullible person; a dupe.
A leather-covered hand weapon; a blackjack.
tr.v.
sapped , sap·ping , saps To drain of sap.
To hit or knock out with a sap.
[Middle English, from Old English sæp .]
sap 2 (sāp) n. A covered trench or tunnel dug to a point near or within an enemy position. v.
sapped , sap·ping , saps v.
tr. To undermine the foundations of (a fortification).
To deplete or weaken gradually.
v.
intr. To dig a sap. [Obsolete French sappe or Italian zappa , hoe , from Old French and Old Italian, both from Late Latin sappa .]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Science Dictionary
sap (sāp) Pronunciation Key
The watery fluid that circulates through a plant that has vascular tissues. Sap moving up the xylem carries water and minerals, while sap moving down the phloem carries water and food.
See cell sap .
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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