Dictionary > Urchin


1. (Science: zoology) A hedgehog.
2. (Science: zoology) A sea urchin. See sea urchin.
3. A mischievous elf supposed sometimes to take the form a hedgehog. We ‘ll dress them like urchins, ouphes, and fairies.
4. A pert or roguish child; now commonly used only of a boy. And the urchins that stand with their thievish eyes Forever on watch ran off each with a prize. (W. Howitt) You did indeed dissemble, you urchin you; but where’s the girl that won’t dissemble for an husband? (goldsmith)
5. One of a pair in a series of small card cylinders, arranged around a carding drum; so called from its fancied resemblance to the hedgehog.
(Science: zoology) Urchin fish, a diodon.
Origin: OE. Urchon, irchon, a hedgehog, OF. Irecon, ericon, herion, herichon, F. Herisson, a derivative fr. L. Ericius, from er a hedgehog, for her; akin to Gr. Cf. Herisson.

You will also like...

Genetics and Evolution
Genetics and Evolution

Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

Crossing Over and Genetic Diversity
Inheritance and Probability

Gregor Mendel, an Austrian monk, is most famous in this field for his study of the phenotype of pea plants, including ..

Human gastrointestinal tract
Human Biology – Food and Digestion

This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..

kinesin motor proteins transporting molecules across microtubules
Movement of Molecules Across Cell Membranes

Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..

Psychiatry and mental disorders
Psychiatry & Mental Disorders

Different mental disorders are described here. Read this tutorial to get an overview of schizophrenia, affective mood di..

Human Nervous System
The Human Nervous System

The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..