SUBSOIL 



1428 



SUBUNGUAL 



Subsoil {sub'-soil) [sub, under; ME., soile, soil]. 

 The undersoil. S. Water, water which has pene- 

 trated the soil, and is found immediately above the 

 first impervious stratum. 



Subspinous {sub-spi'-nus) [sub, under; spina, spine], 



1. Situated beneath or ventrad of the spinal column. 



2. Beneath a spine. 



Subspiral {sub-spi'-ral) [sub, under; spira, a coil]. 

 Somewhat spiral. 



Subsplenial {sub-sple'-ne-al) [sub, under; anXr/vIov, a 

 bandage]. Beneath the splenium. 



Substage {sub'-staj) [sub, under; ME., stage, a stage]. 

 The arrangement beneath the stage of a microscope 

 for the diaphragms, condenser, illuminator, and other 

 accessories. 



Substance (sub'-stans) [substantia, substance]. I. The 

 material of which anything is composed. 2. A tissue. 

 See Substantia. S., Adamantine. Synonym of 

 Enamel. S., Alible, the portion of the chyme which is 

 utilized for nourishing the body. S., Alimentary, 

 an article of food. S., Basis, the intercellular or 

 ground substance. S., Cell, cell-protoplasm. S., 

 Central Gelatinous. Synonym of Substantia gelat- 

 inosa. S., Contractile : I. Living protoplasm which 

 has the property of contracting. 2. The contractile 

 portion of a muscle-fiber. S., Cortical, the peripheral 

 portion of an organ, situated just beneath the capsule. 

 S., Fibrinoplastic. Synonym of Paraglobulin. S., 

 Gelatinous. See Substantia gelalinosa. S., Ger- 

 minal. See Germ-plasma. S., Ground, the homo- 

 geneous matrix or intercellular substance of a tissue in 

 which the cellular elements and fibers are embedded. 

 S., Hyaline. Synonym of Cytoblastema. S., Hya- 

 loid. Synonym of Vitreous Humor. S., Intercel- 

 lular. See S. , Ground. S., Interstitial: I. The 

 connective tissue of an organ. 2. Achromatin. S., 

 Intertubular. the matrix of dentine in which the 

 dentinal canals are placed. S., Intervertebral, the 

 intervertebral cartilages. S., Living, protoplasm. 

 S., Medullary: I. The part of an organ constituting 

 its central in contradistinction to its peripheral or cor- 

 tical portion. 2. The tissue forming the medulla, as in 

 bone. S., Nuclear: I. See Heredity. 2. Chro- 

 matin; mitome. S., Parietal, the matrix of cartilage. 

 S., Proteic. Synonym of Proteid. S., Reticular. 

 Synonym of Formation, Reticular. S. of Schwann, 

 White, the medullary sheath of a nerve-fiber. S., 

 Supporting, a supporting tissue, as the neuroglia and 

 connective tissue. 



Substantia {sub-stan'-ske-ah) [L.]. Substance. S. 

 adamantina dentium, the enamel of the teeth. S. 

 cinerea, the gray matter of the nervous system. 

 S. ferruginea. Synonym of Locus cceruleus. S. 

 filamentosa dentium, a name given by Malpighi to 

 the enamel of the teeth. S. fusca. See Locus niger. 

 S. gelatinosa rolandi, a jelly-like substance found 

 in the spinal cord near the tip of the posterior horn. 

 S. grisea, the gray matter of the spinal cord. S. 

 hyalina, Leydig's term for the inter-reticular portion 

 of protoplasm. S. intermedia, the portion of the 

 cerebellar substance situated between the cortical and 

 the central gray matter. S. medullaris, the medullary 

 substance of the kidney ; also, of a hair. S. nigra. 

 See Lntercalatum. S. opaca, Leydig's term for the 

 reticulum of protoplasm. S. ossea dentium, a 

 name given by Malpighi to dentine. S. parenchy- 

 rnatosa, parenchyma. S. perforata. See Space, 

 Perforated. S. primaria, the medullary portion of the 

 central nervous system. S. propria, the true or most 

 important tissue of an organ. S. reticularis. 

 Synonym of Formation, Reticular. S. rolandi. 

 Synonym of S. gelatinosa rolandi. S. rubra {lienis), 



the splenic pulp. S. scemmerringi. Synonym of 



Locus niger. S. striata. Synonym of Enamel. 



S. vasculosa, the pulp of the spleen. 

 Substantive Coloring-matter. See Pigments, Colors, 



and Eye-stuffs. 

 Substernal {sub-ster'-nal) [sub, under; cripvov, breast- 

 bone]. Situated or occurring beneath the sternum. 



S. Tenderness, a tenderness to pressure in the lower 



portion of the sternum, sometimes thought to be an 



evidence of constitutional syphilis. 

 Substitution {sub-stit-u' -shuti) [sub, under ; statuere, 



to place] . The replacement of one thing by another. 



a. In chemistry, the replacing of one or more element: 



or radicles in a compound by other elements or 



radicles. Substitution is the principal method em- 

 • ployed in examining the chemic structure of organic 



bodies. It is also called metalepsy. b. In medicine. 



the action of the unaffected hemisphere of the brain 



in taking up the function of the diseased opposite 



hemisphere. In general, the vicarious action of 



organs. In pharmacy, the supplying of another drug 



or compound instead of the one ordered or called for. 

 Substratum [sub - stra' '- turn) [sub, under; stratum, & 



layer]. An under layer or stratum. 

 Substriate {sub - stri' - at) [sub, under; stria, stria]. 



Having imperfect striae. 

 Subsulphate [sub - sul' '- fat) [sub, under; sulphur, 



sulphur]. A basic sulphate. S. of Iron. See Stilt, 



Monsel's. 

 Subsultus {sub-sul' -tus) [sub, under ; saltire, to leap]. 



Any jerking or twitching. S. tendinum, involuntary 



twitching of the muscles, especially of the hands and i 



feet, seen in low fevers. 

 Subsynovial {sub-si-no' '-ve-al) [sub, under; syn 



synovia]. Situated within a synovial sac. 

 Subtegmen {sub-teg' '-men) [subtexere, to weave under], i 



Weft. S. fornicis, in the fornix, the layer of i 



fibers situated beneath the superficial longitudin.. ! 



bundles. 

 Subtegumental {sub -teg-u- men f - tal ) [sub, under ; j 



tegumentum, a cover]. Subcutaneous. 

 Subtemporal {sub-tern' -por-al) [sub, under; tetnpus, 



temple]. Situated beneath the temporal bone orj 



muscle or below the temple. 

 Subtentacular {sub-ten-tak' -u-lar) [sub, under; tentacu-, 



lum, a tentacle]. Beneath the tentacles of a crinoid. 

 Subterranean, Subterraneous {sub-ter-a'-ne-an, sub- 



ter-a' '-ne-us) [sitb, under ; terra, earth]. Situated or : 



growing beneath the surface of the earth. 

 Subthalamic {sub-thai' '-am-ik) [sub, under; ftifapc,' 



thalamus]. Situated beneath the optic thalamus. 

 Subthoracic {sub - tho - ras' '• ik) [sub, under; 8 



thorax]. Situated below the thorax. 

 Subtrochanteric {sub -tro-kan- ter'-ik) [sub, an 



TpnxavTT/p, trochanter]. Situated below the 



chanter. S. Amputation, the removal of a 1 



amputation just below the trochanters. 

 Subtrochlear {sub-trok'-le-ar) [sub, under ; Tpo . 



pulley]. Beneath the trochlea. 

 Subtropical {sub-trop'-ik-al) [sub, under; Tpomi(6e, ofi 



the solstice]. Pertaining to regions almost tropical iij 



climate. 

 Sububeres {sub - u' - ber - Iz) [sub, under; ube> ■ 



breasts]. Children at the breast. Sucklingchil 

 Subulate {sub'-u-lat) [subula, an awl]. In bi 



awl -shaped. 

 Subuliform {sub' -u-li form). Synonym of Subulate- 

 Subumbrella {sub ttm-brel'-ah) [sub, under; um 



shade]. In biology, the concave inner surface of tli 



umbrella in Medusa:. 

 Subungual, Subungial {sub-ung'-giual, sub-ung' 



[sub, under; unguis, nail]. Situated beneath the nail 



