| OLFR | olfactory receptor |
|---|---|
| OMP | olfactory marker protein; ornithine monophosphate; outer membrane protein |
| OP | occipitoparietal; occipitoposterior; occiput posterior; octapeptide; olfactory peduncle; opening pre... |
| ORS | olfactory reference syndrome; oral rehydration solution; oral surgery, oral surgeon; Orthopaedic Res... |
| OT | objective test; oblique talus; occlusion time; occupational therapist, occupational therapy; ocular ... |
| D.I. particle | <abbreviation> Defective interfering particle. (05 Mar 2000) |
|---|---|
| dressed particle | <radiobiology> A particle plus its associated neutralising Debye sphere. (09 Oct 1997) |
| intramembranous particle | <cell biology> Particles (or complementary pits) seen in freeze fractured membranes. The cleavage plane is through the centre of the bilayer and the particles are usually assumed to represent Integral membrane proteins (or polymers of such proteins). (18 Nov 1997) |
| either particle flux density | The particle fluence rate, or energy flux density, the energy fluence rate of intensity. Compare: fluence. (05 Mar 2000) |
| elementary particle interactions | The interactions of particles responsible for their scattering and transformations (decays and reactions). Because of interactions, an isolated particle may decay into other particles. Two particles passing near each other may transform, perhaps into the same particles but with changed momenta (elastic scattering) or into other particles (inelastic scattering). Interactions fall into three groups: strong, electromagnetic, and weak. (12 Dec 1998) |
| trapped-particle instability | <radiobiology> Slowly-growing class of instabilities driven by particles which cannot circulate freely in a toroidal system. See: banana orbit. (09 Oct 1997) |
| kappa particle | <microbiology> Gram-negative bacterial endosymbiont of Paramoecium spp., (Caedobacter taeniospiralis) that confers the killer trait, infected Paramoecium are resistant to the toxin liberated by infected forms. Killing activity is associated with the induction of defective phage in the endosymbiont, leading to the release of R bodies, coded for by the phage genome and apparently of mis assembled phage coat protein. (18 Nov 1997) |
| Zimmermann's elementary particle | <haematology> A discoid cell (3m diameter) found in large numbers in blood, important for blood coagulation and for haemostasis by repairing breaches (small breaks) in the walls of blood vessels. Platelet _ granules contain lysosomal enzymes, dense granules contain ADP (a potent platelet aggregating factor) and serotonin (a vasoactive amine). They also release platelet-derived growth factor which presumably contributes to later repair processes by stimulating fibroblast proliferation. Synonym: thrombocytes. (09 Oct 1997) |
| vein of olfactory gyrus | A tributary of the basal vein which drains the medial olfactory stria. Synonym: vein of olfactory gyrus. (05 Mar 2000) |
| region of olfactory mucosa | The specialised olfactory receptive area that includes the upper one-third of the nasal septum and the lateral wall above the superior concha; it is lined with olfactory mucosa. Synonym: regio olfactoria tunicae mucosae nasi, olfactory region of tunica mucosa of nose, Schultze's membrane. (05 Mar 2000) |
| glomerular layer of olfactory bulb | A layer composed of spherical bodies, called glomeruli, formed by the synapses of mitral cells with the olfactory nerve fibres derived from the cells of the olfactory epithelium. (05 Mar 2000) |
| roots of olfactory tract | Lateral and medial, the two fibre bands that form the caudal continuation of the olfactory tract which, upon diverging, enclose the olfactory tubercle. (05 Mar 2000) |
| molecular layers of olfactory bulb | The layer's, composed mainly of nerve fibres, on the outer and inner sides of the layer of mitral cells of the bulb. (05 Mar 2000) |
| olfactory | <physiology> Of, pertaining to, or connected with, the sense of smell; as, the olfactory nerves; the olfactory cells. <anatomy> Olfactory organ, an organ for smelling. In vertebrates the olfactory organs are more or less complicated sacs, situated in the front part of the head and lined with epithelium innervated by the olfactory (or first cranial) nerves, and sensitive to odouriferous particles conveyed to it in the air or in water. Origin: L. Olfactus, p.p. Of olfacere to smell; olere to have a smell + facere = to make. See Odour, and Fact. Source: Websters Dictionary (01 Mar 1998) |
| olfactory angle | The angle formed by the plane of the lamina cribrosa and the basicranial axis. (05 Mar 2000) |