URA 



431 



URE 



tree ; upas, poison), a tree in 

 Java whose shade and juices are 

 poisonous ; see ' Antiaris. ' 



urachus, n., ur^aJc-us (Gr. ourtin. 

 urine ; echo, I have, I hold), the 

 fibre-muscular cord which ex- 

 tends between the summit of the 

 bladder and the umbilicus. 



uraemia, n. , ur-em'i-a (Gr. ourdn, 

 urine; haima, blood), a poisoning 

 of the blood from retention of the 

 products of retrograde metamor- 

 phosis, occurs in those diseases of 

 the urinary organs which interfere 

 with the secretions of the kid- 

 neys : ursemic, a., ur>em'ik, of 

 or pert, to uraemia : uraemic 

 poisoning, same as uraemia, that 

 is, when the secretion products 

 of the kidneys are no longer 

 carried out of the system, but 

 remain in, and contaminate the 

 blood. 



Urania, n., ur-an'i-a (Gr. ourdn- 

 ifts, sublime, lofty from the 

 stateliness of the tree), a genus of 

 splendid plants, Ord. Musacese : 

 Urania speciosa, spSsh^Gsfd (L. 

 speciosus, full of beauty or display 

 from species, look, view, a sort), 

 the Water-tree of the Dutch ; the 

 Traveller's-tree of Madagascar, so 

 named from the great quantity of 

 water which flows from its stem 

 or leaf-stalk when cut across; the 

 juice of the fruit used for dyeing. 



urates, n. plu., ur'-atz (Gr. ouron, 

 mine), the most common of those 

 deposits in the urine known as 

 sand or gravel, usually of a pink 

 or drab colour, and consisting of 

 uric acid in combination with 

 potash, soda, and ammonia: urate, 

 n. , a salt of uric acid. 



Urceola, n., ers-e f -dl-d(L. urcedlus, 

 a little water-pot), a genus of 

 plants, Ord. Apocynacese : Urce- 

 ola elastica, el-ast'-ik-a (mid. L. 

 elasttcus, elastic), one of certain 

 species which supply caoutchouc: 

 urceolate, a., ers-e'ol-dt, shaped 

 like a pitcher. 



urea, n., ur>e'-a (Gr. ourtin, urine), 



a nitrogenous substance forming 

 one of the chief constituents of 

 the urine : uric acid, ur'ilc, one 

 of the constituents of urine. 



Uredo, n., ur-ed'-o (Gr. uro, I 

 scorch or burn), a genus of 

 microscopic Fungi, usually known 

 as mildew and blight, and which 

 give to the part of the plant 

 infested by them a burnt appear- 

 ance : Uredo fo3tida,/e^-a (L. 



fmtidus, fetid, stinking), the 

 Fungi called pepper - brand, 

 having a peculiar fetid odour, 

 which attacks grain : U. segetum, 

 seg'-et-um (L. Segetia, the goddess 

 that protects the standing crops), 

 the Fungus called smut, a sooty 

 powder, having no odour, which 

 attacks the flower of the grain : 

 U. rubigo, rub'lg'-o (L. rublgo, 

 rust, mildew), the Fungus called 

 rust which attacks the leaves and 

 chaff of the grain : U. caries, Mr' 

 Z'ez (L. caries, rottenness, decay), 

 one of the Fungi which cause 

 smut or blight. 



ureter, n., ur-et'er (Gr. oureter, 

 the passage through which the 

 urine flows from ourZo, I make 

 water), in anat., a narrow tube 

 or duct passing down from each 

 kidney, which conveys the urine 

 into the bladder : ureteritis, n. , 

 ur-et'Zr-itfis, inflammation of the 

 ureter. 



uretliotomy, n., fir?&&*#?#m4(Gr. 

 ourethra, the passage through 

 which the urine flows ; tome, a 

 cutting), the operation of opening 

 the urethra. 



urethra, n., ur'tthf-ra (Gr. ouretli- 

 ra, the passage through which 

 the urine flows from our'eo, 1 

 make water), the tube which 

 allows the passage of the urine 

 from the bladder, and conducts 

 the semen of the male : urethrit- 

 is, n., ur'-eth-rlt'-is, inflammation 

 of the urethra: urethral, a., ur- 

 eth'ral, of or pert, to the urethra: 

 uretic, n., ur-etf-ik, a medicine 

 which increases the secretory 



