Odor
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An odor or odour is a smell or a scent caused by one or more volatilized chemical compounds generally found in low concentrations that humans and many animals can perceive via their olfactory system.
"Smell", from Allegory of the Senses by Jan Brueghel the Elder, Museo del Prado
Odor control covers at a sewage treatment plant: Under these covers, grit and gravel are settled out of the wastewater.
Two dogs sniffing each other
Perfume
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Perfume is a mixture of fragrant essential oils or aroma compounds, fixatives and solvents, usually in liquid form, used to give the human body, animals, food, objects, and living-spaces an agreeable
Odor
…are usually reserved for pleasant-smelling odors and are frequently used in the food and cosmetic industry to describe floral scents or to refer to perfumes. The perception of odors, or sense of smell, is mediated by the olfactory nerve. The olfactory receptor (OR) cells are neurons present in the olfactory…
Egyptian scene depicting the preparation of lily perfume, 4th century BC
A Byzantine alembic used to distill perfumes
Ancient Egyptian perfume vessel in shape of a monkey; 1550–1295 BC; faience; height: 6.5 cm, width: 3.3 cm, depth: 3.8 cm; Metropolitan Museum of Art (New York City)
Ancient Egyptian perfume vase in shape of an amphoriskos; 664–630 BC; glass: 8 cm × 4 cm (3.1 in × 1.6 in); Metropolitan Museum of Art (New York City)