(n.) An impure, massive, flintlike quartz or hornstone, of a dull color.
Example Sentences:
(1) Occurrence of well-preserved rod-shaped and coccoid bacteria in the Precambrian Gunflint chert (1.9 x 10(9) years old) has been demonstrated by electron microscopy.
(2) In order to evaluate the degree of morphological preservation of erythrocytes in bloodstains, an accidental human blood smear on white chert and several experimental bloodstains on hard substrates (the same stone-white chert; another type of stone-graywacke; a non-stone support-stainless steel), were stored in a room, in non-sterile and fluctuating conditions, for lengths of time ranging from 3 to 18 months.
(3) Large amounts of well preserved microfossils have been reported from the cherts of the Upper Proterozoic of the Bohemian Massif (Middle Europe).
(4) Two billion year old black chert lenses from the Duck Creek formation, northwestern Western Australia, contain abundant organically preserved microorganisms which are morphologically similar to fossils of approximately the same age from the Gunflint formation, Ontario.
Chest
Definition:
(n.) A large box of wood, or other material, having, like a trunk, a lid, but no covering of skin, leather, or cloth.
(n.) A coffin.
(n.) The part of the body inclosed by the ribs and breastbone; the thorax.
(n.) A case in which certain goods, as tea, opium, etc., are transported; hence, the quantity which such a case contains.
(n.) A tight receptacle or box, usually for holding gas, steam, liquids, etc.; as, the steam chest of an engine; the wind chest of an organ.
(v. i.) To deposit in a chest; to hoard.
(v. i.) To place in a coffin.
(n.) Strife; contention; controversy.
Example Sentences:
(1) The results also indicate that small lesions initially noted only on CT scans of the chest in children with Wilms' tumor frequently represent metastatic tumor.
(2) This article reviews the care of the chest-injured patient during the intensive care unit phase of his or her recovery.
(3) A comparison of chest pain description was performed between MI and non-MI subjects.
(4) After a review of the technical development and application of staplers from their introduction to the present day, the indications to the use of this instrument in all gastroenterological areas from the oesophagus to the rectum as well as in chest, gynaecological and urological surgery specified.
(5) Radiological findings on chest X-rays taken two weeks after BAI were evaluated according to Takeuchi's criteria.
(6) A case of dissecting hematoma involving the left main, left anterior descending, and left circumflex coronary arteries is described in a patient who had received vigorous closed-chest cardiac resuscitation.
(7) None of these were apparent on prior roentgenograms of the chest.
(8) A nine-year-old male child presented with a history of recurrent chest infections and breathlessness.
(9) The first source attended was a private practitioner for 53 % of the patients, another private medical establishment for 4 %, a Government chest clinic for only 11 % and another Government medical establishment for 17 %, 9 % went first to a herbalist and 5 % went to a drug store or treated themselves.
(10) Chest X-ray revealed multiple nodular lesions in both lung fields.
(11) Five normovolemic patients undergoing cardiac catheterization for atypical chest pain syndrome volunteered for this study.
(12) Of the 2,472 patients with chest pain evaluated by the emergency medical technicians, 453 (18%) were diagnosed with AMI during hospitalization.
(13) Persons with clinical abdominal findings, shock, altered sensorium, and severe chest injuries after blunt trauma should undergo the procedure.
(14) Fibreoptic bronchoscopy should be undertaken in patients suspected of having a pulmonary complication of AIDS, even if the chest radiograph is normal.
(15) The effect on mortality, serious ventricular arrhythmias and chest pain seemed to be similar in different age groups.
(16) A chest X-ray examination showed a large mediastinal mass on the right.
(17) ECG and chest impedance were continuously monitored and recorded.
(18) Treatment was always surgical, with the following procedures: Laparotomy and chest drainage tube in 7 cases (21%), thoracotomy in 12 cases (36%) and a combined thoracoabdominal approach in 14 (43%).
(19) Spirometry and lung volumes, diffusing capacity of carbon monoxide, chest radiograph, methacholine airway challenge, and bronchoalveolar lavage were done.
(20) In four of the empyemas, PCD was used successfully after incomplete or unsuccessful chest tube drainage.