SF |
Sabin-Feldman [test]; safety factor; salt-free; scarlet fever; screen film; seminal fluid; serosal f... |
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SFW |
sexual function of women; shell fragment wound; slow-filling wave |
SL |
shell-less |
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shell |
1. A hard outside covering, as of a fruit or an animal. Specifically: The covering, or outside part, of a nut; as, a hazelnut shell. A pod. The hard covering of an egg. "Think him as a serpent's egg, . . . And kill him in the shell. <mathematics> " (Shak) Hence, by extension, any mollusks having such a covering. 2. A hollow projectile, of various shapes, adapted for a mortar or a cannon, and containing an explosive substance, ignited with a fuse or by percussion, by means of which the projectile is burst and its fragments scattered. See Bomb. 3. The case which holds the powder, or charge of powder and shot, used with breechloading small arms. 4. Any slight hollow structure; a framework, or exterior structure, regarded as not complete or filled in; as, the shell of a house. 5. A coarse kind of coffin; also, a thin interior coffin inclosed in a more substantial one. 6. An instrument of music, as a lyre, the first lyre having been made, it is said, by drawing strings over a tortoise shell. "When Jubal struck the chorded shell." (Dryden) 7. An engraved copper roller used in print works. 8. The husks of cacao seeds, a decoction of which is often used as a substitute for chocolate, cocoa, etc. 9. The outer frame or case of a block within which the sheaves revolve. 10. A light boat the frame of which is covered with thin wood or with paper; as, a racing shell. Message shell, a bombshell inside of which papers may be put, in order to convey messages. Shell bit, a tool shaped like a gouge, used with a brace in boring wood. See Bit. Shell button. A button made of shell. A hollow button made of two pieces, as of metal, one for the front and the other for the back, often covered with cloth, silk, etc. Shell cameo, a cameo cut in shell instead of stone. Shell flower. <botany> A kind of marl characterised by an abundance of shells, or fragments of shells. Shell meat, food consisting of shellfish, or testaceous mollusks. Shell mound. See Mound. Shell of a boiler, the exterior of a steam boiler, forming a case to contain the water and steam, often inclosing also flues and the furnace; the barrel of a cylindrical, or locomotive, boiler. Shell road, a road of which the surface or bed is made of shells, as oyster shells. Shell sand, minute fragments of shells constituting a considerable part of the seabeach in some places. Origin: OE. Shelle, schelle, AS. Scell, scyll; akin to D. Shel, Icel. Skel, Goth. Skalja a tile, and E. Skill. Cf. Scale of fishes, Shale, Skill. Source: Websters Dictionary (01 Mar 1998) |
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shell nail |
Bronchiectasis with excessive longitudinal curvature of the nail plate and atrophy of the nail bed and underlying bone. (05 Mar 2000) |
shell shock |
The World War I name for what is known today as posttraumatic stress, this is a psychological disorder that develops in some individuals who have had major traumatic experiences (and, for example, have been in a serious accident or through a war). The person is typically numb at first but later has symptoms including depression, excessive irritability, guilt (for having survived while others died), recurrent nightmares, flashbacks to the traumatic scene, and overreactions to sudden noises. Posttraumatic stress became known as such in the 70s due to the adjustment problems of some vietnam veterans. (12 Dec 1998) |
shellac |
A resinous excretion of an insect, Laccifer (Tachardia) lacca (family Coccidae). The insects suck the juice of various resiniferous Asiatic (chiefly Indian) trees and excrete and deposit "stick-lac." shellac softens at a low temperature. It has many nonmedicinal uses and is also used to coat confections and tablets and in dental materials, e.g., impression compound and denture base plates. Synonym: lacca. (05 Mar 2000) |
shellac base |
A resinous wafer adapted to maxillary or mandibular casts to form baseplates. (05 Mar 2000) |
shellapple |
<zoology> See Sheldafle. Source: Websters Dictionary (01 Mar 1998) |
shellbark |
<botany> A species of hickory (Carya alba) whose outer bark is loose and peeling; a shagbark; also, its nut. Source: Websters Dictionary (01 Mar 1998) |
shelled |
<zoology> Having a shell. Source: Websters Dictionary (01 Mar 1998) |
shellfish |
<zoology> Any aquatic animal whose external covering consists of a shell, either testaceous, as in oysters, clams, and other mollusks, or crustaceous, as in lobsters and crabs. Source: Websters Dictionary (01 Mar 1998) |
acorn-shell |
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argus shell |
ark shell |
boat shell |
bubble shell |
maara shell |
valve-shell |
mail-shell |
mask shell |
goroon shell |
rice-shell |
wedge-shell |
wing-shell |
worm-shell |
wreath-shell |
Synonyms :
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shell shock
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battle fatigue: a mental disorder caused by stress of active warfare
출처: wordnet.princeton.edu/perl/webwn
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shellac
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lac purified by heating and filtering; usually in thin orange or yellow flakes but sometimes bleached white a thin varnish made by dissolving lac in ethanol; used to finish wood cover with shellac; "She wanted to shellac the desk to protect it from water spots"
출처: wordnet.princeton.edu/perl/webwn
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shell
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ammunition consisting of a cylindrical metal casing containing an explosive charge and a projectile; fired from a large gun the material that forms the hard outer covering of many animals carapace: hard outer covering or case of certain organisms such as arthropods and turtles the hard usually fibrous outer layer of some fruits especially nuts blast: use explosives on; "The enemy has been shelling us all day" the exterior covering of a bird's egg fall out of the pod or husk; "The corn shelled" a rigid covering that envelops an object; "the satellite is covered with a smooth shell of ice" hit the pitches of hard and regularly; "He shelled the pitcher for eight runs in the first inning" a very light narrow racing boat look for and collect shells by the seashore the housing or outer covering of something; "the clock has a walnut case" beat: come out better in a competition, race, or conflict; "Agassi beat Becker in the tennis championship"; "We beat the competition"; "Harvard defeated Yale in the last football game" plate: a metal sheathing of uniform thickness (such as the shield attached to an artillery piece to protect the gunners) remove from its shell or outer covering; "shell the legumes"; "shell mussels" the hard largely calcareous covering of a mollusc husk: remove the husks from; "husk corn"
출처: wordnet.princeton.edu/perl/webwn
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shell crown
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an artificial crown applied like a shell or cap over the remaining natural crown of a tooth; the space between the crown and the shell is filled with cement. Called also cap c.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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shell shock
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The military term combat stress reaction (CSR) comprises the range of adverse behaviours in reaction to the stress of combat and combat related activities. In the military setting it generally does not include the range of adaptive reactions and behaviours in reaction to such stresses. Combat stress behaviours can also include misconduct stress behaviours which are not dealt with in this article. Some US military publications still refer to battle fatigue as the main focus of management. ...
출처: en.wikipedia.org/wiki/Shell_Shock
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