Dictionary » P » Perpendicular

Perpendicular

perpendicular

1. Exactly upright or vertical; pointing to the zenith; at right angles to the plane of the horizon; extending in a right line from any point toward the center of the earth.

2. (Science: geometry) at right angles to a given line or surface; as, the line ad is perpendicular to the line bc. Perpendicular style, a name given to the latest variety of english Gothic architecture, which prevailed from the close of the 14th century to the early part of the 16th; probably so called from the vertical style of its window mullions.

Origin: L. Perpendicularis, perpendicularius: cf. F. Perpendiculaire. See Perpendicle, Pension.

1. A line at right angles to the plane of the horizon; a vertical line or direction.

2. (Science: geometry) A line or plane falling at right angles on another line or surface, or making equal angles with it on each side.


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Re: function of a centriole?

... which is a small region in the cytoplasm near the nucleus. Within the centrosomes, the two centrioles are positioned in such a way that both are perpendicular to each other. Like other structures of a cell, centrioles too perform several important functions. Below here is a brief discussion about ...

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by sara135
Tue Jul 12, 2011 11:05 am
 
Forum: Cell Biology
Topic: function of a centriole?
Replies: 22
Views: 79924

is this the radicle or plumule for a dwarf bean?(pic inside)

Radicle will be white in colour and you can observe root hairs even with a hand lens. It will try to grow towards gravity. Perpendicular to it, plumule will emerge and soon turn green (if you are exposing it to light). BTW, which seeds have you planted? From your fig. they look like ...

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by anjalik
Sat Oct 03, 2009 11:51 am
 
Forum: Botany Discussion
Topic: is this the radicle or plumule for a dwarf bean?(pic inside)
Replies: 8
Views: 5877

Tools for studying cells question

... is then shadowed with evaporated platinum or gold at an average angle of 45° in a high vacuum evaporator. A second coat of carbon, evaporated perpendicular to the average surface plane is often performed to improve stability of the replica coating. The specimen is returned to room temperature ...

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by MrMistery
Fri Dec 26, 2008 6:07 pm
 
Forum: Cell Biology
Topic: Tools for studying cells question
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Re: Bible vs Darwin

... were merely made by "chance", and not design." "If you look around Mt.Rushmore and see the amount of natural slated, cracked, perpendicular formations of rock; you'd think nothing of them till you glance at these well incredibly crafted faces on that same exact mountain." ...

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by viloloco5
Thu Oct 16, 2008 10:19 am
 
Forum: Evolution
Topic: Bible vs Darwin
Replies: 293
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Rare Florist Gloxinia

... genetic variation. The normal gloxinia produces two leaves per node junction on its main stem as it grows. The suceeding nodes grow leaves that perpendicular to the last. So the leaves grow like North-South, then up the stem East-West, then North-South again. All of my other gloxinias grow in ...

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by guitarmaestro
Thu May 22, 2008 5:17 pm
 
Forum: Genetics
Topic: Rare Florist Gloxinia
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