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butyl rubber
butylate
butylated hydroxyanisole
butylated hydroxytoluene
butylene
butyraceous
butyraldehyde
butyrate
butyric
butyric acid
butyrin
butyrolactone
buxom
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buttress

but·tress [ búttrəss ]


noun  (plural but·tress·es)
Definition:
 
1. support for wall: a solid structure, usually made of brick or stone, that is built against a wall to support it

2. somebody or something that gives support: somebody or something that acts as a source of support, help, or reinforcement
The constitution is a buttress of our civil rights.

3. projecting rock: a large projecting rock mass that appears to support the rock above it

4. hoof part: the pointed horny rear part of a horse's hoof



transitive verb  (past and past participle but·tressed, present participle but·tress·ing, 3rd person present singular but·tress·es)
Definition:
 
1. support wall: to support a wall with a buttress

2. support or reinforce something: to support, help, or reinforce something, especially an argument, analysis, or point of view
He buttressed his views with lengthy quotations from the scriptures.

[14th century. < Old French (ars) bouterez "thrusting (arch)" < bouter (see butt1)]
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