Dictionary » B » Brake



1. (Science: botany) a fern of the genus Pteris, especially. The P. Aquilina, common in almost all countries. It has solitary stems dividing into three principal branches. Less properly: Any fern.

2. A thicket; a place overgrown with shrubs and brambles, with undergrowth and ferns, or with canes. Rounds rising hillocks, brakes obscure and rough, to shelter thee from tempest and from rain. (Shak) He stayed not for brake, and he stopped not for stone. (Sir W. Scott) Cane brake, a thicket of canes. See Canebrake.

Origin: oe. Brake fern; cf. As. Bracce fern, LG. Brake willow bush, Da. Bregne fern, g. Brach fallow; prob. Orig. The growth on rough, broken ground, fr. The root of E. Break. See break, cf. Bracken, and 2d brake.

1. An instrument or machine to break or bruise the woody part of flax or hemp so that it may be separated from the fibre.

2. An extended handle by means of which a number of men can unite in working a pump, as in a fire engine.

3. A baker's kneading though.

4. A sharp bit or snaffle. Pampered jades . . . Which need nor break nor bit. (Gascoigne)

5. A frame for confining a refractory horse while the smith is shoeing him; also, an inclosure to restrain cattle, horses, etc. A horse . . . Which philip had bought . . . And because of his fierceness kept him within a brake of iron bars. (j. Brende)

6. That part of a carriage, as of a movable battery, or engine, which enables it fa9 to turn.

7. An ancient engine of war analogous to the crossbow and ballista.

8. (Science: agriculture) a large, heavy harrow for breaking clods after plowing; a drag.

9. A piece of mechanism for retarding or stopping motion by friction, as of a carriage or railway car, by the pressure of rubbers against the wheels, or of clogs or ratchets against the track or roadway, or of a pivoted lever against a wheel or drum in a machine.

10. (Science: engineering) An apparatus for testing the power of a steam engine, or other motor, by weighing the amount of friction that the motor will overcome; a friction brake.

11. A cart or carriage without a body, used in breaking in horses.

12. An ancient instrument of torture. Air brake. See air brake, in the vocabulary. Brake beam or brake bar, the beam that connects the brake blocks of opposite wheels. Brake block. The part of a brake holding the brake shoe. A brake shoe. Brake shoe or brake rubber, the part of a brake against which the wheel rubs. Brake wheel, a wheel on the platform or top of a car by which brakes are operated. Continuous brake . See continuous.

Origin: oe. Brake; cf. LG. Brake an instrument for breaking flax, g. Breche, fr. The root of E. Break. See break, and cf. Breach.

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Chromosome Differences

Long chromosomes brake apart accidentally and selected eventually during evolution.

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by josem
Thu Sep 04, 2014 10:15 pm
Forum: Genetics
Topic: Chromosome Differences
Replies: 5
Views: 3311


... time give him or her treatment against that bacteria? Have you ever driven a car Jack? You use the accelerator and at the same time you use the brake? Does that seem like nonsense to you? It shouldn't because there's no other way to drive than to use both accelerator and brake. If someone invited ...

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by PeterDow
Mon Oct 28, 2013 12:28 pm
Forum: Human Biology
Topic: My “Eureka” moment. A cure for cancer.
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Centrifuging low amount of bacteria

As fast as possible for 5 minutes more than you would normally have. Do not brake at full force and change medium quickly. Or keep the last ml at the bottom of the tube, use it to rinse the sides of your tube, quick spin and transfer to a microtube, centrifuge ...

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by canalon
Thu Dec 08, 2011 1:32 am
Forum: Microbiology
Topic: Centrifuging low amount of bacteria
Replies: 5
Views: 4996

Removing MBP tag

I would use urea or guanidium as a very last option, if he's going for active protein. Better is to use high salt to brake the electrostatic bonds. Papaver, you can always dialyze the maltose away, so that you can load it repeatedly. How do you know that it was partially cut, if ...

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by JackBean
Fri Oct 21, 2011 9:43 am
Forum: Molecular Biology
Topic: Removing MBP tag
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Theories - Origin of Life

... on one: http://richarddawkins.net/discussions/643020-is-homo-sapiens-really-wise-enough-to-be-rational-about-the-future?page=1 . The other two - Brake. ( - http://richarddawkins.net/discussions/597670-new-evidence-for-panspermia-in-the-news&usg=ALkJrhjac0MFdObEecr-VaobFrIJIB6U8g - http://richarddawkins.net/discussions/633089-a-few-questions-of-biology-and-the-origins-of-life?page=4 ...

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by LeoPol
Wed Sep 14, 2011 9:45 am
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 563
Views: 1128647
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