TECHNICAL

EDUCATION  . The term now generally adopted to designate the special training of persons in the arts and sciences that underlie the practice of some trade or The generally accepted Indo-Germ. root is dak-, to bite, cf . Gr. barcuew, and Skt. dac, to bite, tears being " biting " or " bitter " things . The Du. traan, in the sense of tear-drop, was particularly applied to the blubber of whales reduced to oil by boiling, whence has come the tautological English " train-oil," often identified with the lubricant used for the wheels of rail-way trains . For the so-called " tear-vessels," which are properly small vases containing unguents, see LACRYMATORY . " Tear " (O.E. teran), to pull apart violently, to rend, is, of course, a distinct word; it is cognate with Gr. hi pap, to flay, pull off, and the root is seen in Gr. b p/sa, skin, whence "dermatology," " epidermis," &c .