| official formula | A formula contained in the Pharmacopeia or the National Formulary. (05 Mar 2000) |
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| officiant | The officer who officiates or performs an office, as the burial office. Origin: L. Officians, p.pr. See Officiate. Source: Websters Dictionary (01 Mar 1998) |
| officinal | 1. Used in a shop, or belonging to it. 2. <pharmacology> Kept in stock by apothecaries; said of such drugs and medicines as may be obtained without special preparation or compounding; not magistral. This term is often interchanged with official, but in strict use officinal drugs are not necessarily official. See Official. Origin: F, fr. L. Officina a workshop, contr.fr. Opificina, fr. Opifex a workman; opus work + facere = to make or do. Source: Websters Dictionary (01 Mar 1998) |
| offish | Shy or distant in manner. Source: Websters Dictionary (01 Mar 1998) |
| offset | In general, that which is set off, from, before, or against, something; as: 1. <botany> A short prostrate shoot, which takes root and produces a tuft of leaves, etc. 2. A sum, account, or value set off against another sum or account, as an equivalent; hence, anything which is given in exchange or retaliation; a set-off. 3. A spur from a range of hills or mountains. 4. A horizontal ledge on the face of a wall, formed by a diminution of its thickness, or by the weathering or upper surface of a part built out from it; called also set-off. 5. A short distance measured at right angles from a line actually run to some point in an irregular boundary, or to some object. 6. <mechanics> An abrupt bend in an object, as a rod, by which one part is turned aside out of line, but nearly parallel, with the rest; the part thus bent aside. 7. A more or less distinct transfer of a printed page or picture to the opposite page, when the pages are pressed together before the ink is dry or when it is poor. Offset staff, a rod, usually ten links long, used in measuring offsets. Origin: Off + set. Cf. Set-off. Source: Websters Dictionary (01 Mar 1998) |
| offshoot | That which shoots off or separates from a main stem, channel, family, race, etc.; as, the offshoots of a tree. Origin: Off + shoot. Source: Websters Dictionary (01 Mar 1998) |