BACK a.
e) See under Pressure. -- Back rest, a guide attached to the slide rest of a lathe, and placed in contact with the work, to steady it in turning. -- Back slang, a kind of slang in which every word is written or pronounced backwards; as, nam for man. -- Back stairs, stairs in the back part of a house; private stairs.…
BALL n.
- formerly, the pupil of the eye. -- Ball valve (Mach.), a contrivance by which a ball, placed in a circular cup with a hole in its bottom, operates as a valve. -- Ball vein (Mining), a sort of iron ore, found in loose masses of a globular form, containing sparkling particles. -- Three balls, or Three golden balls,…
BEACH n.
Ammophila arundinacea), growing on the sandy shores of lakes and seas, which, by its interlaced running rootstocks, binds the sand together, and resists the encroachment of the waves. -- Beach wagon, a light open wagon with two or more seats. -- Raised beach, an accumulation of water-worn stones, gravel, sand, and ot…
BED n.
attress, filled with some soft material, in distinction from the bedstead on which it is placed (as, a feather bed), or this with the bedclothes added. In a general sense, any thing or place used for sleeping or reclining on or in, as a quantity of hay, straw, leaves, or twigs. And made for him [a horse] a leafy bed. B…