LISTING MARK
\lˈɪstɪŋ mˈɑːk], \lˈɪstɪŋ mˈɑːk], \l_ˈɪ_s_t_ɪ_ŋ m_ˈɑː_k]\
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Certification mark given as a stamp of approval organizations that apply independent standards or testing on qualifying goods and materials. The 'UL' mark is such a mark given by Underwriters' Laboratory, which is such an organization.
By Henry Campbell Black
Word of the day
color television tube
- a television tube that displays images in full color