Dictionary » R » Rod



1. A straight and slender stick; a wand; hence, any slender bar, as of wood or metal (applied to various purposes). Specifically: An instrument of punishment or correction; figuratively, chastisement. He that spareth his rod hateth his son. (Prov. Xiii. 24)

A kind of sceptor, or badge of office; hence, figuratively, power; authority; tyranny; oppression. The rod, and bird of peace. .

A support for a fishing line; a fish pole.

(Science: machinery) A member used in tension, as for sustaining a suspended weight, or in tension and compression, as for transmitting reciprocating motion, etc.; a connecting bar.

An instrument for measuring.

2. A measure of length containing sixteen and a half feet; called also perch, and pole. Black rod.

(Science: anatomy) rods and cones, the elongated cells or elements of the sensory layer of the retina, some of which are cylindrical, others somewhat conical.

Origin: The same word as rood. See rood.

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it's also affected by the shape, spherical molecules move faster than rod-shaped ones of the same weight.

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by JackBean
Sun May 04, 2014 12:36 pm
Forum: Cell Biology
Topic: diffusion
Replies: 2
Views: 889

Bacterial Taxonomy

Introduction and Purpose Statement I am studying bacterial taxonomy. I want you to criticize my associations. Doubted statements are in red text, awaiting confirmation. Questions are in green text. I prefer sources, but I can ...

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by wildfunguy
Sat Oct 19, 2013 6:12 pm
Forum: Microbiology
Topic: Bacterial Taxonomy
Replies: 3
Views: 3968

Eukaryotic and Prokaryotic

... Archaea or archaea bacteria. The genetic material in prokaryotes is one single, ring-shaped chromosome, while in eukaryotes it is in the form of rod-shaped chromosomes. Most bacteria have cell wall made in majority by peptidogylcans. Eukaryotic organisms are divided into 4 kingdoms: the Protista ...

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by SteveYst
Wed Oct 03, 2012 1:39 pm
Forum: Cell Biology
Topic: Eukaryotic and Prokaryotic
Replies: 4
Views: 12226

gram negative cocci. please help

I don't understand. 1. If it's "gram negative cocci", why are you doing tests for enterics? 2. If it is a rod, repeat MR-VP. They usually opposites of each other (methyl red positive and VP -ve OR methyl red -ve and VP +ve). One of those tests is most likely wrong. 3. By ...

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by Cat
Sun Sep 09, 2012 9:41 pm
Forum: Microbiology
Topic: gram negative cocci. please help
Replies: 8
Views: 9188

identifying 2 unknown bacterias

I have a gram negative, rod positive capsule present negative amylase reaction acidic, curd formation, peptonization in the protease reaction positive catalase reaction negative H2S reaction negative motility positive indole reaction ...

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by jl930
Wed Jul 18, 2012 4:57 am
Forum: Microbiology
Topic: identifying 2 unknown bacterias
Replies: 1
Views: 3192
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