| LAS | laboratory automation system; lateral amyotrophic sclerosis; laxative abuse syndrome; left anterior-... |
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| LASH | left anterior superior hemiblock |
| LSR | lanthanide shift reagent; lecithin/ sphingomyelin ratio; left superior rectus [muscle]; liver/spleen... |
| LSVC | left superior vena cava |
| MSO | management service organization; medial superior olive; medical staff organization |
| supraepicondylar process | An occasional spine projecting from the anteromedial surface of the humerus about 5 cm above the medial epicondyle to which it is joined by a fibrous band. The supracondylar foramen thus formed transmits the brachial artery and median nerve. Synonym: processus supraepicondylaris humeri, supraepicondylar process. (05 Mar 2000) |
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| dendritic process | A long, branching outgrowth or extension from a neuron, that carries electrical signals from synapses to the cell body, unlike an axon that carries electrical signals away from the cell body. Each nerve cell usually has many dendrites. This classical definition, however, lost some weight with the discovery of axo-axonal and dendro-dendritic synapses. (29 Sep 1997) |
| dental process | That portion of bone in either the maxilla or the mandible which surrounds and supports the teeth. (12 Dec 1998) |
| interaction process analysis | In psychology, analysis of small group behaviour in terms of 12 specific categories, e.g., solidarity, tension release, agreement. (05 Mar 2000) |
| intrajugular process | A small pointed process of bone extending from the middle of the jugular notch in both the occipital and the temporal bones, the two being joined by a ligament and dividing the jugular foramen into two portions. Synonym: processus intrajugularis. (05 Mar 2000) |
| irreversible process | <chemistry> Any real process, when a system undergoes the changes State 1 - greater than State 2 - greater than State 1 by any real pathway, the universe is different that before the cyclic process took place in the system. (09 Jan 1998) |
| odontoblastic process | The extension of the odontoblast which lies within the dentinal tubule; application of stimuli to dentin may cause aspiration of odontoblast contents into the process. (05 Mar 2000) |
| odontoid process | The toothlike process on the upper surface of the axis, which articulates with the atlas above. (12 Dec 1998) |
| odontoid process of epistropheus | Synonym: Tooth. 2. A strong toothlike process projecting upward from the body of the axis, or epistropheus, around which the atlas rotates. Synonym: odontoid process of epistropheus, odontoid process. Origin: L. (05 Mar 2000) |
| olecranon process | <anatomy> The large process at the proximal end of the ulna which projects behind the articulation with the humerus and forms the bony prominence of the elbow. Origin: NL, fr.Gr.; elbow + the head. Source: Websters Dictionary (01 Mar 1998) |
| orbicular process | A knob at the tip of the long limb of the incus which articulates with the stapes. Synonym: processus lenticularis incudis, lenticular apophysis, lenticular bone, orbicular bone, orbicular process, orbiculare, os orbiculare, os sylvii. (05 Mar 2000) |
| orbital process | The anterior and larger of the two processes at the upper extremity of the vertical plate of the palatine bone, articulating with the maxilla, ethmoid, and sphenoid bones. Synonym: processus orbitalis. (05 Mar 2000) |
| outcome and process assessment | Evaluation procedures that focus on both the outcome or status (outcome assessment) of the patient at the end of an episode of care - presence of symptoms, level of activity, and mortality; and the process (process assessment) - what is done for the patient diagnostically and therapeutically. (12 Dec 1998) |
| temporal process | The posterior projection of the zygomatic bone articulating with the zygomatic process of the temporal bone to form the zygomatic arch. Synonym: processus temporalis. (05 Mar 2000) |
| thermochemical conversion process | Chemical reactions employing heat to produce fuels. (05 Dec 1998) |