Dictionary » F » Frog

Frog

Frog

1. (Science: zoology) An amphibious animal of the genus rana and related genera, of many species. Frogs swim rapidly, and take long leaps on land. Many of the species utter loud notes in the springtime.

The edible frog of Europe (rana esculenta) is extensively used as food; the American bullfrog (R. Catesbiana) is remarkable for its great size and loud voice.

2. [Perh. Akin to E. Fork, cf. Frush frog of a horse.

(Science: anatomy) The triangular prominence of the hoof, in the middle of the sole of the foot of the horse, and other animals; the fourchette.

3. A supporting plate having raised ribs that form continuations of the rails, to guide the wheels where one track branches from another or crosses it.

4. [Cf. Fraco of wool or silk, L. Floccus, E. Frock] An oblong cloak button, covered with netted thread, and fastening into a loop instead of a button hole.

5. The loop of the scabbard of a bayonet or sword. Cross frog, a small, leaping, hemipterous insect living on plants. The larvae are inclosed are frothy liquid called cuckoo spit or frog spit.

(Science: botany) frog lily, the frothy exudation of th 510 e frog hopper; called also frog spittle. See Cuckoo spit, under Cuckoo.

Origin: as. Froggu, frocga a frog (in sensel); akin to D. Vorsch, OHG. Frosk, g. Frosch, Icel. Froskr, fraukr, Sw. & dan. Fro.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


How does blood is circulated in amphibians?

The frog circulatory system consist of two atria and one single ventricle. It is the only organ within the coelom which has its own protective covering. The single ventricle is not divided into two compartments like a humans ...

See entire post
by suzidoc8
Mon Jul 23, 2012 2:00 pm
 
Forum: Physiology
Topic: How does blood is circulated in amphibians?
Replies: 4
Views: 3639

How does blood is circulated in amphibians?

In amphibians like frog,during blood circulation 2 atria contract and pump blood into single ventricle(heart is 3 chamberd).In the ventricle mixed blood is formed.How does mixed blood is circulated to various body parts via aorta?

See entire post
by kumar985
Fri Jul 20, 2012 4:29 pm
 
Forum: Physiology
Topic: How does blood is circulated in amphibians?
Replies: 4
Views: 3639

What are the limits of genetic engineering

... because there is one language of life: human genes work in bacteria, monkey genes work in mice and earthworms. Tree genes work in bananas and frog genes work in rice. There is no limit in theory to the potential of genetic engineering.

See entire post
by allenePanek
Wed Feb 22, 2012 7:43 am
 
Forum: Genetics
Topic: What are the limits of genetic engineering
Replies: 9
Views: 3336

Urgeent!! Frog dissection

I'm going to finish a lab about frog dissection. There's a few questions to discuss after the lab, and I can't search the answers through the web, can anyone help me? How Do sodium and calcium ions respectively affect heart beat rate and ...

See entire post
by sunshine662
Fri Jan 27, 2012 9:35 am
 
Forum: Human Biology
Topic: Urgeent!! Frog dissection
Replies: 0
Views: 521

Alien facehugger biology

... in real nature? It seems symbiotic, although the one is the offspring of the other, so the point my collegue made was that it is like a tadpole/frog transformation, but to me that didn't make sense because the facehugger just scampers off to die somewhere else once he delivered the embryo to ...

See entire post
by jkootte
Wed Nov 30, 2011 4:31 pm
 
Forum: General Discussion
Topic: Alien facehugger biology
Replies: 2
Views: 940
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 3,226 times. 
What links here | Related changes | Permanent link