naphthalenes
plural of naphthalene
Source: Wiktionary
Naph"tha*lene, n. (Chem.)
Definition: A white crystalline aromatic hydrocarbon, C10H8, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called also naphthaline. Naphthalene red (Chem.), a dyestuff obtained from certain diazo derivatives of naphthylamine, and called also magdala red.
– Naphthalene yellow (Chem.), a yellow dyestuff obtained from certain nitro derivatives of naphthol.
Source: Webster’s Unabridged Dictionary 1913 Edition
25 November 2024
(noun) infestation with slender threadlike roundworms (filaria) deposited under the skin by the bite of black fleas; when the eyes are involved it can result in blindness; common in Africa and tropical America
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