Dictionary > Shelf

Shelf

shelf
Origin: OE. Shelfe, schelfe, AS. Scylfe; akin to G. Schelfe, Icel. Skjalf. In senses 2 & 3, perhaps a different word (cf. Shelve,).
1. A flat tablet or ledge of any material set horizontally at a distance from the floor, to hold objects of use or ornament.
2. A sand bank in the sea, or a rock, or ledge of rocks, rendering the water shallow, and dangerous to ships. On the tawny sands and shelves. (milton) On the secret shelves with fury cast. (Dryden)
3. (Science: chemical) A stratum lying in a very even manner; a flat, projecting layer of rock.
4. A piece of timber running the whole length of a vessel inside the timberheads. To lay on the shelf, to lay aside as unnecessary or useless; to dismiss; to discard.


You will also like...

Protein (illustration)
Protein Variety

The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..

Birth Control and Contraception
Birth Control and Contraception

Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..

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..

Origins of Life on Earth
Origins of Life on Earth

Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..

Body temperature regulation by the hypothalamus
Temperature Regulation in Animals

This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..

human respiratory system
Respiration

The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..