Amer

Jour. Psychol., I. 375. erethism (er'e-thizm), n. [ ἐρεθισμός , irritation, ἐρεθίζειν , equiv. to ἐρέθειν , rouse to anger, excite, irritate.] In physiol ., excitement or stimulation of any organ or ti ue, specifically of the organs of generation: as, the sexual erethism . - Mercurial erethism, an irritated state of erethismic (er-e-thiz'mik), a . [ erethism + -ic.] Pertaining to erethism. Erethismic shock, a shock in which symptoms of excitement are combined with those of prostration. erethistic (er-e-this'tik), a. [ erethism .] Relating to erethism. erethitic (er-e-thit'ik), a. [Irreg. Erethizon (er-e-thi'zon), n. [NL. (F. Cuvier, 1822), ἐρεθίζων , ppr. of ἐρεθίζειν , excite, irritate: see erethism .] A genus of porcupines, of the family Hystricida , having a stout form, short spines overlaid by hair, a short, thick, blunt, and flattened tail, non-prehensile, the toes four in front and five behind, all armed with strong curved claws, and the habits arboreal and terrestrial. There are two living species, E. dorsatus, the urson or Canada porcupine, of eastern North America, and E. epixanthus , the yellow-haired porcupine, of western North America. A fo il form is described as E. cloacinus. Echinoprocta is a synonym. See cut under porcupine . Eretmochelys (er-et-mok'e-lis), n. [ έρετ μόν , an oar ἐρέσσειν , row), χέλυς , tortoise.] IMG:content-0674.png:[blocks in formation] Ergates Eretmosauria (e-ret-mō-sa'ri-a), n. pl . [NL., Eretmosaurus + -ia . ] A group of reptiles, taking name from the genus Eretmosaurus. Also Eretmosauræ . Eretmosaurus (e-ret-mō-sa'rus), n . [NL., σαῦρος , a lizard.] A genus of reptiles. Seeley , 1874. Eretrian (e-rē'tri-an), a . [ Eretria , Gr. Ἐρέτρια , Eretria (see def.), + -an .] Pertaining to Eretria, an ancient city in the island of Eubœa, Greece. Eretrian school of philosophy, the Eliac or Elean school: so called from the fact that it removed to Eretria. Ereunetes (er-ö-në'tēz), n. [NL. (Illiger, 1811), έρευνητής , a searcher, ἐρευνᾶν , search after.] A genus of small sandpipers, of the family Scolopacida , having the general charac Semipalmated Sandpiper (Ereunetes pusillus ). ters of that section of the genus Tringa grouped under the genus Actodromas , but the feet semipalmate. The type species, E. pusillus , is one of the commonest sandpipers of North America, well known as the semipalmated sandpiper or peep . erewhile (ar'hwil'), adv . [ while .] Some time ago; a little while before. I am as fair now as I was erewhile . Shak ., M. N. D., iii. 2.