Radioscope, rā′di-o-skōp, n. an instrument for detecting radiation (see Radiant).
Röntgenise, runt′gen-īz (g hard), v.t. to treat by the Röntgen rays (see at X-rays under X).—ns. Röntgenog′raphy, photography by these rays; Röntgenol′ogy, the study of the rays; Röntgenos′copy, observation by means of them; Röntgenother′apy, healing by means of them.
Serendipity, sėr-en-dip′i-ti, n. a love for rare old books and other articles of virtu.—adj. appertaining to this. [Coined from Serendib, a character in the Arabian Nights who went about picking up odds and ends and piecing them together.]
Spinthariscope, spin-thär′i-skōp, n. an instrument devised by Sir W. Crookes for observing the scintillations produced in zinc sulphide by a small fragment of a radium compound placed near it. [Gr. spintharis, a spark, and skopein, to see.]
Sulphonal, sul′fō-nal, n. a chemical compound used as a hypnotic and anæsthetic, and derived in part from potassium sulpho-hydrate.
Taximeter, tak-sim′e-tėr, n. an instrument attached to cabs for indicating the fare due for the distance travelled. Sometimes (but wrongly) called Taxameter. [Fr. taxe, price, and Gr. metron, measure.]
Telegony, tel-eg′on-i, n. the transmitted influence of a male by whom a female has previously conceived upon her subsequent offspring by another male. [Gr. tēlē, at a distance, gonia, a begetting.]
Telescriptor, tel′e-skrip-tor, n. a machine for the purpose of sending messages over telegraph wires so that they appear in the handwriting of the sender when received. [Gr. tēlē, at a distance, L. scriptum, scribere, to write.]
Trional, trī′ō-nal, n. a drug used as a hypnotic, akin to sulphonal, but safer.
Veronal, ver′ō-nal, n. a drug used as a hypnotic, akin to trional.