1911 Encyclopædia Britannica/Tester
TESTER (Fr, têtière, head-covering, from tête), anything placed horizontally over the head, as the sound-board of a pulpit, the fiat boards over an old-fashioned bed, &c.
See also Sounding board on Wikipedia; and our 1911 Encyclopædia Britannica disclaimer.
TESTER (Fr, têtière, head-covering, from tête), anything placed horizontally over the head, as the sound-board of a pulpit, the fiat boards over an old-fashioned bed, &c.