*eurosi*

‖n.; pl. Aponeuroses [ Gr. &unr_;, fr. &unr_; to pass into a tendon; &unr_; from + &unr_; to strain the sinews, &unr_; sinew, tendon, nerve. ] (Anat.) Any one of the thicker and denser of the deep fasciæ which cover, invest, and the terminations and attachments of, many muscles. They often differ from tendons only in being flat and thin. See Fascia. [ 1913 Webster ]

‖n.; pl. Neuroses [ NL., fr. Gr. ney^ron nerve. ] 1. (Med.) A functional nervous affection or disease, that is, a disease of the nerves without any appreciable change of nerve structure. [ 1913 Webster ]

2. (Psychiatry) a mental or emotional disorder that affects only part of the personality, and involves less distorted perceptions of reality than a psychosis. As used in medicine, anxiety is a prominent characteristic, and the condition may be accompanied by psychosomatic symptoms. Phobias and compulsive behavior are common varieties. [ MW10 ] [ PJC ]

‖n. [ NL. See Pleuro-, and Sigma. ] (Bot.) A genus of diatoms of elongated elliptical shape, but having the sides slightly curved in the form of a letter S. Pleurosigma angulatum has very fine striations, and is a favorite object for testing the high powers of microscopes. [ 1913 Webster ]