INVISIBLE a.
Incapable of being seen; not perceptible by vision; not visible. To us invisible, or dimly seen In these thy lowest works. Milton. Invisible bird (Zoöl.), a small, shy singing bird (Myadestes sibilons), of St. Vincent Islands. -- Invisible green, a very dark shade of green, approaching to black, and liable to be mista…
LAW n.
egular changes which the primitive Indo-European mute consonants, so-called (most plainly seen in Sanskrit and, with some changes, in Greek and Latin), have undergone in the Teutonic languages. Examples: Skr. bhatr, L. frater, E. brother, G. bruder; L. tres, E. three, G. drei, Skr. go, E. cow, G. kuh; Skr. dha to put,…
LEFT-HANDED a.
Having a direction contrary to that of the hands of a watch when seen in front; -- said of a twist, a rotary motion, etc., looked at from a given direction. Left-handed marriage, a morganatic marriage. See Morganatic. -- Left-handed screw, a screw constructed to advance away from the observer, when turned, as in a nut…
LIGHTNING n.
htening, as of the mental powers. [R.] Ball lightning, a rare form of lightning sometimes seen as a globe of fire moving from the clouds to the earth. -- Chain lightning, lightning in angular, zigzag, or forked flashes. -- Heat lightning, more or less vivid and extensive flashes of electric light, without thunder, se…
LONGITUDE n.
de of Capella is 79º. Geocentric longitude (Astron.), the longitude of a heavenly body as seen from the earth. -- Heliocentric longitude, the longitude of a heavenly body, as seen from the sun's center. -- Longitude stars, certain stars whose position is known, and the data in regard to which are used in observations…