| rat-flea typhus | Murine typhus, an acute infectious disease with fever, headache, and rash, all quite similar to, but milder than, epidemic typhus, caused by a related microoganism, rickettsia typhi (mooseri), transmitted to humans by rat fleas (xenopsylla cheopis). The animal reservoir includes rats, mice and other rodents. Murine typhus occurs sporadically worldwide but is more prevalent in congested rat-infested urban areas. Also known as endemic typhus and urban typhus of malaya. (12 Dec 1998) |
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| water flea | <zoology> Any one of numerous species of small aquatic Entomostraca belonging to the genera Cyclops, Daphnia, etc; so called because they swim with sudden leaps, or starts. Source: Websters Dictionary (01 Mar 1998) |
| typhus, endemic flea-borne | An infectious disease clinically similar to epidemic louse-borne typhus (typhus, epidemic louse-borne), but caused by rickettsia typhi, which is transmitted from rat to man by the rat flea, xenopsylla cheopis. (12 Dec 1998) |
| typhus, rat-flea | See Typhus, murine. (12 Dec 1998) |
| flea | <entomology> An insect belonging to the genus Pulex, of the order Aphaniptera. Fleas are destitute of wings, but have the power of leaping energetically. The bite is poisonous to most persons. The human flea (Pulex irritans), abundant in Europe, is rare in America, where the dog flea (P. Canis) takes its place. A flea in the ear, an unwelcome hint or unexpected reply, annoying like a flea; an irritating repulse; as, to put a flea in one's ear; to go away with a flea in one's ear. Beach flea, Black flea, etc. See Beach, etc. Origin: OE. Fle, flee, AS. Flea, fleah; akin to D, OHG. Flh, G. Floh, Icel. Fl, Russ. Blocha; prob. From the root of E. Flee. 84. See Flee. (30 Mar 1998) |
| flea-beetle | <zoology> A small beetle of the family Halticidae, of many species. They have strong posterior legs and leap like fleas. The turnip flea-beetle (Phyllotreta vittata) and that of the grapevine (Graptodera chalybea) are common injurious species. Source: Websters Dictionary (01 Mar 1998) |
| flea-bitten kidney | The kidney seen at autopsy in some cases of bacterial endocarditis, the appearance being caused by diffuse petechial haemorrhages resulting from focal glomerulonephritis. (05 Mar 2000) |
| flea-borne typhus | An acute infectious disease with fever, headache, and rash, all quite similar to, but milder than, epidemic typhus, caused by a related microoganism, rickettsia typhi (mooseri), transmitted to humans by rat fleas (xenopsylla cheopis). The animal reservoir includes rats, mice and other rodents. Murine typhus occurs sporadically worldwide but is more prevalent in congested rat-infested urban areas. Also known as endemic typhus, rat-flea typhus; urban typhus of malaya). (12 Dec 1998) |
| flea-louse | <zoology> A jumping plant louse of the family Psyllidae, of many species. That of the pear tree is Psylla pyri. Source: Websters Dictionary (01 Mar 1998) |
| balanced bite | The simultaneous contacting of the upper and lower teeth on the right and left and in the anterior and posterior occlusal areas in centric and eccentric positions within the functional range; used primarily in reference to the mouth, but also arranged and observed on articulators, developed to prevent a tipping or rotating of the denture bases in relation to the supporting structures. Synonym: balanced articulation, balanced bite. (05 Mar 2000) |
| biscuit bite | A record of the relation of the mandible to the maxillae, the act of recording the relation of the mandible to the maxillae. Synonym: biscuit bite, maxillomandibular registration. (05 Mar 2000) |
| bite | 1. To seize with the teeth, so that they enter or nip the thing seized; to lacerate, crush, or wound with the teeth; as, to bite an apple; to bite a crust; the dog bit a man. "Such smiling rogues as these, Like rats, oft bite the holy cords atwain." (Shak) 2. To puncture, abrade, or sting with an organ (of some insects) used in taking food. 3. To cause sharp pain, or smarting, to; to hurt or injure, in a literal or a figurative sense; as, pepper bites the mouth. "Frosts do bite the meads." 4. To cheat; to trick; to take in. 5. To take hold of; to hold fast; to adhere to; as, the anchor bites the ground. "The last screw of the rack having been turned so often that its purchase crumbled, . . . It turned and turned with nothing to bite." (Dickens) To bite the dust, To bite the ground, to fall in the agonies of death; as, he made his enemy bite the dust. To bite in, to corrode or eat into metallic plates by means of an acid. To bite the thumb at (any one), formerly a mark of contempt, designed to provoke a quarrel; to defy. "Do you bite your thumb at us ?" . To bite the tongue, to keep silence. Origin: OE. Biten, AS. Bitan; akin to D. Bijten, OS. Bitan, OHG. Bizan, G. Beissen, Goth. Beitan, Icel. Bita, Sw. Bita, Dan. Bide, L. Findere to cleave, Skr. Bhid to cleave. Cf. Fissure. 1. To seize something forcibly with the teeth; to wound with the teeth; to have the habit of so doing; as, does the dog bite? 2. To cause a smarting sensation; to have a property which causes such a sensation; to be pungent; as, it bites like pepper or mustard. 3. To cause sharp pain; to produce anguish; to hurt or injure; to have the property of so doing. "At the last it [wine] biteth like serpent, and stingeth like an adder." (Prov. Xxiii. 32) 4. To take a bait into the mouth, as a fish does; hence, to take a tempting offer. 5. To take or keep a firm hold; as, the anchor bites. 1. The act of seizing with the teeth or mouth; the act of wounding or separating with the teeth or mouth; a seizure with the teeth or mouth, as of a bait; as, to give anything a hard bite. "I have known a very good fisher angle diligently four or six hours for a river carp, and not have a bite." (Walton) 2. The act of puncturing or abrading with an organ for taking food, as is done by some insects. 3. The wound made by biting; as, the pain of a dog's or snake's bite; the bite of a mosquito. 4. A morsel; as much as is taken at once by biting. 5. The hold which the short end of a lever has upon the thing to be lifted, or the hold which one part of a machine has upon another. 6. A cheat; a trick; a fraud. "The baser methods of getting money by fraud and bite, by deceiving and overreaching." (Humorist) 7. A sharper; one who cheats. 8. A blank on the edge or corner of a page, owing to a portion of the frisket, or something else, intervening between the type and paper. Origin: OE. Bite, bit, bitt, AS. Bite bite, fr. Bitan to bite, akin to Icel. Bit, OS. Biti, G. Biss. See Bite, v, and cf. Bit. Source: Websters Dictionary (01 Mar 1998) |
| bite analysis | A study of the relations of the occlusal surfaces of opposing teeth and their effect upon related structures. Synonym: bite analysis. (05 Mar 2000) |
| bite force | The force applied by the masticatory muscles in dental occlusion. (12 Dec 1998) |
| bite fork | <dentistry> That part of the face-bow assemblage used to attach the maxillary trial base to the face-bow proper. Synonym: bite fork. (05 Mar 2000) |