smell


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smell,

sense that enables an organism to perceive and distinguish the odors of various substances, also known as olfaction. In humans, the organ of smell is situated in the mucous membrane of the upper portion of the nasal cavity near the septum. It is made up of the olfactory cells, which are actually nerve cells that function as receptors for the sense of smell. The free ends of the cells project outward from the epithelial tissue in the form of numerous hairlike processes. These fibers are buried in the mucus that coats the inner surface of the nasal cavity and are stimulated by various odors. Nerve fibers extend from the olfactory cells to an area of the brain called the olfactory bulb. Any disturbance of the nasal cavity—such as the common cold—in which the olfactory hairs are covered with excess mucus or other material, interferes with the sense of smell. Most physiologists agree that although a substance must be volatile to be sniffed by the nose, it must subsequently be dissolved in the mucous lining of the nasal cavity to be smelled. It is also believed that there are only a few basic odors (perhaps about seven), and that all other odors are a combination of these. Attempts at classifying the so-called primary sensations of smell have not yet been successful. The sense of smell is not as strongly developed in humans as in many other vertebrates, particularly carnivores which employ olfactory organs to locate food and detect dangerous predators. To many invertebrates (especially insects) as well, smell is a highly developed sensory mechanism, necessary in obtaining food, in finding mating partners, and in recognizing other animals.

What does it mean when you dream about a smell?

Experiences from the past play a part in distinguishing what a smell in a dream means to the dreamer. Sometimes we remember people by the odors we identify them with, like grandpa’s pipe tobacco. In this example, the significance of the dream would depend on what grandpa meant to the dreamer.

smell

[smel]
(physiology)
To perceive by olfaction.

smell

that sense (olfaction) by which scents or odours are perceived

Smell

(dreams)
At times you may experience the sense of smell in your dreams. The smell could be environmental. If there is a strong smell in your sleeping environment, you may perceive it and incorporate it into your dream. Otherwise, the smell in your dreams is triggered by a memory. You may be associating your dream experience with a pleasant or unpleasant order. For example, if you are dreaming about your mother, you may smell the aroma of a food she once cooked. The smell may trigger emotions and reflect the general quality of the experience in your dream.
References in classic literature ?
He became conscious of a mysteriously offensive odour in the room, entirely new in his experience of revolting smells.
Does the king bid me to smell out him of whom the spirits have spoken to me as the worker of this deed?
Then the young man Indabazimbi stepped straight forward across the ring, making no cries or gestures, but as one who walks from his gate to the cattle kraal, and suddenly he struck the king in the face with the tail in his hand, saying, "I smell out the Heavens above me
I smelt him out this morning when I was alive; now that I am as one already dead, I smell him out again.
I dare say my birds sing better than other birds, and my flowers smell better than other flowers.
Mowgli, his head on Mother Wolf's side, smiled contentedly, and said that, for his own part, he never wished to see, or hear, or smell Man again.
He could smell things as very few human beings could, but he had never reached the hair-trigger-like sensitiveness of a Jungle nose; and his three months in the smoky village had set him back sadly.
Men always play with their mouths," said Mowgli; and the silent trailers saw the old man fill and light and puff at a water-pipe, and they took good note of the smell of the tobacco, so as to be sure of Buldeo in the darkest night, if necessary.
My tusks were red at the Sack of the Fields of Bhurtpore, and I would not wake that smell again.
Only the smell of the new grass on their door-steps can take away that smell.
It was the smells of the night," said Bagheera penitently.
Of course the air round an Indian village is full of all kinds of smells, and to any creature who does nearly all his thinking through his nose, smells are as maddening as music and drugs are to human beings.