| oat cell | A short, bluntly spindle-shaped cell that contains a relatively large, hyperchromatic nucleus, frequently observed in some forms of undifferentiated bronchogenic carcinoma. (05 Mar 2000) |
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| oat cell cancer | A type of lung cancer in which the cells look like oats. Also called small cell lung cancer. (12 Dec 1998) |
| oat cell carcinoma | <tumour> An anaplastic, highly malignant, and usually bronchogenic carcinoma composed of small ovoid cells with very scanty cytoplasm; this carcinoma and small round cell carcinoma's comprise over one-third of carcinoma's of the lung. Synonym: small cell carcinoma. (05 Mar 2000) |
| oath | Origin: OE. Othe, oth, ath, AS. A; akin to D. Eed, OS. E, G. Eid, Icel. Eir, Sw. Ed, Dan. Eed, Goth. Ais; cf. OIr. Oeth. 1. A solemn affirmation or declaration, made with a reverent appeal to God for the truth of what is affirmed. "I have an oath in heaven" "An oath of secrecy for the concealing of those [inventions] which we think fit to keep secret." (Bacon) 2. A solemn affirmation, connected with a sacred object, or one regarded as sacred, as the temple, the altar, the blood of Abel, the Bible, the Koran, etc. 3. An appeal (in verification of a statement made) to a superior sanction, in such a form as exposes the party making the appeal to an indictment for perjury if the statement be false. 4. A careless and blasphemous use of the name of the divine Being, or anything divine or sacred, by way of appeal or as a profane exclamation or ejaculation; an expression of profane swearing. "A terrible oath" (01 Mar 1998) |
| oatmeal | 1. Meal made of oats. 2. <botany> A plant of the genus Panicum; panic grass. Source: Websters Dictionary (01 Mar 1998) |
| oatmeal-tomato paste agar | A special culture medium for the production of ascospore formation in the dermatophytes. (05 Mar 2000) |
| oats | A grass of the genus avena, especially a. Sativa, widely cultivated for its edible seeds and also the seeds of the oat, used as food and fodder. (12 Dec 1998) |