SPECIALITY n.
the characteristic of every one who cultivates his speciality. Ld. Lytton. We 'll say, instead, the inconsequent creature man, -For that'a his speciality. Mrs. Browning. Think of this, sir, . . . remote from the impulses of passion, and apart from the specialities -- if I may use that strong remark -- of prejudice. Di…
SPIRAL a.
al gearing, a kind of gearing sometimes used in light machinery, in which spiral gears, instead of bevel gears, are used to transmit motion between shafts that are not parallel. -- Spiral operculum, an operculum whih has spiral lines of growth. -- Spiral shell, any shell in which the whorls form a spiral or helix. -…
STAFF n.
at the bottom, for penetrating the ground, and having a socket joint at the top, used, instead of a tripod, for supporting a compass. -- Staff angle (Arch.), a square rod of wood standing flush with the wall on each of its sides, at the external angles of plastering, to prevent their being damaged. -- The staff of l…