Coal tar can be injurious to health. Coal tar is also used to manufacture paints, synthetic dyes (notably tartrazine/Yellow #5), and photographic materials. In the coal gas era, there were many companies in Britain whose business was to distill coal tar to separate the higher-value fractions, such as naphtha, creosote and pitch. A great many industrial chemicals were first isolated from coal tar during this time. These companies included: Side effects of coal tar products include skin irritation, sun sensitivity, allergic reactions, and skin discoloration. It is unclear if use during pregnancy is safe for the baby and use during breastfeeding is
Meaning (linguistics) that a word invokes for a person in addition to its literal or primary meaning. The original use of "meaning" as understood early in the 20th century occurred through Lady Welby, after her daughter translated the term "semantics" from French. Languages allow information to be conveyed even when the specific words used are not known by the reader or listener. People connect words with meaning and use words to refer to concepts. A person's intentions affect what is meant. "Meaning" (in English) as "intent" harkens back to the Anglo-Saxons and is associated today still, with the German verb "meinen" as