Spider

(spi'-der). An arthropod of the cla Arachnid a. S. Cancer. See Acne rosacea. S. -cells; in biology: (a) Bacilli the flagella of which are present in such numbers as to give the microbes the appearance of minute spiders. See Bacillus typhi abdominal is, under Bacteria, Synonymatic Table of; (b) the characteristic cells of the neuroglia. They have numerous long and delicate prolongations. See also Deiters' Cells . S. Nevus. See Acne rosacea. Ss'. 'Web aranea, formerly much used as a hemostatic, and also in some systemic diseases; used also as a moxa, with the blow-pipe. Spigel's Line. See Lines, Table of.