ROCK n.
cer. -- Rock cress (Bot.), a name of several plants of the cress kind found on rocks, as Arabis petræa, A. lyrata, etc. -- Rock crystal (Min.), limpid quartz. See Quartz, and under Crystal. -- Rock dove (Zoöl.), the rock pigeon; -- called also rock doo. -- Rock drill, an implement for drilling holes in rock; esp.,…
ROMAN a.
not in figures, as I., IV., i., iv., etc.; -- said of numerals, as distinguished from the Arabic numerals, 1, 4, etc. Roman alum (Chem.), a cubical potassium alum formerly obtained in large quantities from Italian alunite, and highly valued by dyers on account of its freedom from iron. -- Roman balance, a form of bala…
RUSH n.
aris, in which the flowers grow in dense spikes. -- Sweet rush, a sweet-scented grass of Arabia, etc. (Andropogon schoenanthus), used in Oriental medical practice. -- Wood rush, any plant of the genus Luzula, which differs in some technical characters from Juncus.
SECONDARY a.
Note under Planet. -- Secondary qualities, those qualities of bodies which are not inseparable from them as such, but are dependent for their development and intensity on the organism of the percipient, such as color, taste, odor, etc. -- Secondary quills or remiges (Zoöl.), the quill feathers arising from the forea…
SEMITIC a.
m or his descendants; belonging to that division of the Caucasian race which includes the Arabs, Jews, and related races. [Written also Shemitic.] Semitic language, a name used to designate a group of Asiatic and African languages, some living and some dead, namely: Hebrew and Phoenician, Aramaic, Assyrian, Arabic, Eth…
SIMOOM; SIMOON n.
A hot, dry, suffocating, dust-laden wind, that blows occasionally in Arabia, Syria, and neighboring countries, generated by the extreme heat of the parched deserts or sandy plains.
SNAP n.
so snapping beetle. -- Snap flask (Molding), a flask for small work, having its sides separable and held together by latches, so that the flask may be removed from around the sand mold. -- Snap judgment, a judgment formed on the instant without deliberation. -- Snap lock, a lock shutting with a catch or snap. -- Sn…