| Odland body | A membrane-bound granule, 100 to 500 nm in diameter, located in the upper layers of the stratum spinosum of certain stratified squamous epithelia. Synonym: lamellar granule, membrane-coating granule, Odland body. (05 Mar 2000) |
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| odmyl | <chemistry> A volatile liquid obtained by boiling sulphur with linseed oil. It has an unpleasant garlic odour. Origin: Gr, stench + -yl. Source: Websters Dictionary (01 Mar 1998) |
| odogenesis | Synonym: neurocladism. Origin: G. Hodos, path, + genesis, source (05 Mar 2000) |
| odonata | <zoology> The division of insects that includes the dragon flies. Origin: NL, fr. Gr, a tooth. Source: Websters Dictionary (01 Mar 1998) |
| odontagra | Obsolescent term for toothache thought to be of gouty origin. Origin: odonto-+ G. Agra, seizure (05 Mar 2000) |
| odontalgia | <medicine> Toothache. Origin: NL, fr. Gr., a tooth + pain. Source: Websters Dictionary (01 Mar 1998) |
| odontalgia dentalis | Reflex pain in the ear due to dental disease, usually propagated along the auriculotemporal nerve. Origin: odont-+ G. Algos, pain (05 Mar 2000) |
| odontalgic | Relating to or marked by toothache. (05 Mar 2000) |
| odontalgy | <medicine> Same as Odontalgia. Source: Websters Dictionary (01 Mar 1998) |
| odontectomy | Removal of teeth by the reflection of a mucoperiosteal flap and excision of bone from around the root or roots before the application of force to effect the tooth removal. Origin: odont-+ G. Ektome, excision (05 Mar 2000) |
| odonterism | Chattering of the teeth. Origin: odont-+ G. Erismos, quarrel (05 Mar 2000) |
| odontiasis | Eruption or "cutting" of the teeth, especially of the deciduous teeth. Synonym: odontiasis. (05 Mar 2000) |
| odontinoid | 1. Resembling dentin. 2. A small excrescence from a tooth, most common on the root or neck. 3. Toothlike. (05 Mar 2000) |
| odontitis | Inflammation of the dental pulp, usually due to bacterial infection in dental caries, tooth fracture, or other conditions causing exposure of the pulp to bacterial invasion. Chemical irritants, thermal factors, hyperaemic changes, and other factors may also cause pulpitis. (12 Dec 1998) |
| odonto- | A tooth, teeth (properly used in words formed from G. Roots). Origin: G. Odous (odont-) (05 Mar 2000) |