TUB 



426 



TUR 



knob on a bone, generally form- 

 ing an attachment to muscles. 



Tubicola, n., tub-ik'-dl-d (L. tuba, 

 a pipe ; cdlo, I inhabit), the 

 Order of Annelida which construct 

 tubular cases, in which they pro- 

 tect themselves : tubicolous, a., 

 tub'ik'-dl-us, inhabiting a tube. 



tubular, a., tiib'-ul-ar (L. tubulus, a 

 small pipe from tubus, a pipe), 

 hollow and cylindrical ; in bot. , 

 applied to the regular florets of 

 Compositse. 



tubuli contort!, tub'-ul-l Icon-tort'-i 

 (L. tubulus, a small pipe ; con- 

 tortus, twisted), twisted or con- 

 voluted tubules, which form the 

 greater part of the cortical sub- 

 stance of the kidneys : tubuli 

 recti, rektf-i (L. rectus, straight), 

 straight tubules ; a name applied 

 to the seminal ducts of the testis 

 when they assume a comparatively 

 straight course also called * vasa 

 recta ' ; also denoting the straight 

 portion of the tubules of the 

 kidneys, which convey the urine : 

 t. seminiferi, sem'in-ij'Zr-i (L. 

 semmifer, bearing semen from 

 semen, seed ; fero, I bear), the 

 small convoluted tubes in which 

 the seminal fluid is secreted : t. 

 uriniferi, ur'-m-if-er-l (L. urlmf- 

 $r, bearing urine from urina, 

 urine ; fero, I bear), the tubules 

 which bear or collect the urine of 

 the kidneys. 



tumour, n., tum'-er (L. tumor, a 

 swelling), a morbid growth on a 

 part of the body in the form of a 

 swelling or enlargement; a growth 

 which may either be innocent or 

 malignant the former comprise 

 * sarcomata,' or fleshy growths; 

 the latter, true cancers, or * carcin- 

 omata. ' 



tunica adiposa, tun'-ik-a ad'-ip-oz'a 

 (L. tunica, a coating, a membrane ; 

 adiposus, fatty from adeps, fat), 

 loose areolar tissue, usually con- 

 taining much dense fat, which 

 assists in maintaining the kidneys 

 in their position : tunica adven- 



titia, ad'.v%n-tish''i>a (L. advtn- 

 titms, foreign from ad, to ; v$n- 

 to, I come), the foreign or outside 

 tunic ; the external coat of the 

 arteries : t. albuginea, aW-U'jln'- 

 %>a (L. albugineus, of a white 

 appearance from albugo, the 

 white of the eye), a strong cap- 

 sule which encloses the testis 

 proper: t. choroidea, Icor-oyd'-e-a 

 (Gr. chorion, skin or leather ; 

 eidos, resemblance), the choroid 

 coat of the eye, consisting of a 

 dark - brown membrane lying 

 between the sclerotic and the 

 retina : t. chorio-capillaris, Icor' 

 t'd-kap'-il'ldr'-is (L. capilldris, 

 pert, to the hair from cdpillus, 

 the hair of the head), the inner 

 part of the choroid coat of the 

 eye, formed by the capillaries of 

 the choroidal vessels: t. vaginalis, 

 vadj f -in-dl f 'is (L. vaginalis, of or 

 pert, to a vagina or sheath), a 

 serous membrane whose visceral 

 portion closely invests the great 

 part of the body of the testis as 

 well as the epididymis : t. vasc- 

 ulosa testis, vask'iil-dz'a test'is 

 (L. vasculosus, full of small ves- 

 sels from vasculum, a small 

 vessel ; testis^ the testicle), the 

 vascular tunic of the testicle ; 

 the vascular network, together 

 with its connecting areolar tissue, 

 which surrounds the testicle. 



tunicated, a., tun'4k-dt f -ed (L. 

 tunica, an under garment, a 

 membrane), in bot., covered by 

 thin external scales, as the onion : 

 Tunicata, n. plu., tun^ik-dt'-a, a 

 class of Molluscoida, or headless 

 Molluscs, which are enveloped in 

 a tough, leathery case or test : 

 tunicle, n., tun'-i-kl, a natural 

 covering ; an integument. 



Turbellaria, n. plu., terb'-Zl-ldr'-i-d 

 (L. turbellce, a bustle, a stir 

 from turbo, I disturb), in zool., 

 an Order of Scolecida, so named 

 from the currents they cause in 

 the water in which they exist. 



turbinate, a., terb'm-dt, also turb- 



