While smell can refer to pleasant and unpleasant odors, the terms scent, aroma, and fragrance are usually reserved for pleasant-smelling odors and are frequently used in the food and cosmetic …

Jun 19, 2026 · smell, scent, odor, aroma mean the quality that makes a thing perceptible to the olfactory sense. smell implies solely the sensation without suggestion of quality or character.

Body odor is caused by a mix of bacteria and sweat on your skin. Your body odor can change due to hormones, the food you eat, infection, medications or underlying conditions like diabetes.

Mar 25, 2026 · There are many reasons why you may still smell bad even with good hygiene. Learn about what causes strong body odor and how to prevent it.

Mar 19, 2026 · It's normal for your body odor to change as you age. Using deodorant, perfume, scented lotions, or swapping up the scented items in your environment can mask or change how you smell. …

Add to word list a particular smell, esp. a bad one: the musty odor of a damp cellar (Definition of odor from the Cambridge Academic Content Dictionary © Cambridge University Press)

Jun 20, 2025 · “Old people smell comes from lipid peroxidation on top of the skin. And if you don’t have enough antioxidants, that smell builds up, and because we don’t get a lot of cellular turnover as we...

Mar 24, 2026 · Learn how odor molecules travel from the air to your brain, and why your sense of smell works the way it does.

Odor is a sensation caused by molecules dissolved in air. The widest range of odors are made up of organic compounds although some inorganic substances, such as hydrogen sulfide and ammonia, …

An odor is anything you can smell — like a scent or an aroma. If you sniff a sour odor in your gallon of milk, you should probably pour it down the sink instead of drinking it.