Thus benzene, toluene, and related hydrocarbons, while not particularly pleasant-smelling themselves, were classified as aromatic because they were obtained from fragrant substances.
He was able to isolate from the essential oils a group of fragrant substances that he named terpenes, and he showed that most of these compounds belonged to the class now called isoprenoids.
My first stop was the National Institutes of Health's site at www.nih.gov, where I learned that aromatherapy (the use of fragrant substances to improve mood or health) is a complementary treatment used in conjunction with conventional medical approaches.
The device contained 10 metal oxide semiconductors sensors with different sensitivities and selectivity for different fragrant substances (Figure 1a) [22].
Rocky lumps found eroding from ancient clay-rich sediments in Italy may be the first known fossils of ambergris, a fragrant and flammable substance produced in the intestines of sperm whales.
Rather than packing their menus with important dishes, these young chefs and restaurateurs, like Zak Pelaccio at 5 Ninth, Grace and Jack Lamb at Jack's Luxury Oyster Bar and April Bloomfield at the Spotted Pig, are offering accessible food -- food that puts substance over style, like meatballs fragrant with sage, robust squid stew, lemon gelato.
Turkish Spinach With Tomatoes and Rice: Not every tradition allows rice during Passover; in this fragrant dish there's just enough of it to add substance to the vegetables.
Perfume, fragrant product that results from the artful blending of certain odoriferous substances in appropriate proportions.
Some plant species bear glandular trichomes that secrete a series of lipophilic substances and proteins, and are distinguished for their medicinal, culinary, fragrant and insecticidal properties.
The fragrant resin had once been required for the incense that burned on altars from Jerusalem and Cairo to Rome, a substance so precious that it made a fitting gift from a King of the East to a new-born god.
