| SSL | secure sockets layer; skin surface lipid; sufficient sleep |
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| TLC | tender loving care; thin-layer chromatography; total L-chain concentration; total lung capacity; tot... |
| TLE | temporal lobe epilepsy; thin-layer electrophoresis; total lipid extract |
| TVL | tenth value layer; tunica vasculosa lentis |
| AJC | American Joint Committee |
| bar joint denture | A complete denture that is supported by both soft tissue and natural teeth that have been altered so as to permit the denture to fit over them. The altered teeth may have been fitted with short or long copings, locking devices, or connecting bars. Synonym: bar joint denture, hybrid prosthesis, overdenture, telescopic denture. (05 Mar 2000) |
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| basal cell layer | The deepest layer of the epidermis, composed of dividing stem cells and anchoring cells. Synonym: basal cell layer, columnar layer, germinative layer, palisade layer, stratum basale, stratum cylindricum, stratum germinativum. (05 Mar 2000) |
| basal joint reflex | Opposition and adduction of the thumb with flexion at its metacarpophalangeal joint and extension at its interphalangeal joint, when firm passive flexion of the third, fourth, or fifth finger is made; the reflex is present normally but is absent in pyramidal lesions. Synonym: finger-thumb reflex, Mayer's reflex. (05 Mar 2000) |
| basal layer | The outermost layer of the endometrium which undergoes only minimal changes during the menstrual cycle. Synonym: basal layer. Synonym: stratum basale epidermidis. (05 Mar 2000) |
| basal layer of choroid | The transparent, nearly structureless inner layer of the choroid in contact with the pigmented layer of the retina. Synonym: basal lamina of choroid, basal layer of choroid, Bruch's membrane, Henle's membrane, lamina vitrea, vitreous lamella, vitreous membrane. (05 Mar 2000) |
| basal layer of ciliary body | The inner layer of the ciliary body, continuous with the basal layer of the choroid and supporting the pigment epithelium of the ciliary retina. Synonym: lamina basalis corporis ciliaris, basal layer of ciliary body. (05 Mar 2000) |
| biaxial joint | One in which there are two principal axes of movement situated at right angles to each other; e.g., saddle joint's. (05 Mar 2000) |
| bicondylar joint | A synovial joint in which two more or less distinct, rounded surfaces of one bone articulate with shallow depressions on another bone. Synonym: articulatio bicondylaris, bicondylar articulation. (05 Mar 2000) |
| bilocular joint | One in which the intra-articular disk is complete, dividing the joint into two distinct cavities. (05 Mar 2000) |
| boundary layer | <radiobiology> In fluid flow, a narrow region next to a fixed boundary or surface where the fluid velocity rapidly changes from zero to some finite value. The term has been generalised to situations with similar mathematics. (09 Oct 1997) |
| brown layer | An exceedingly delicate layer of loose, pigmented connective tissue on the inner surface of the sclera, connecting it with the choroid. Synonym: lamina fusca sclerae, brown layer, membrana fusca. (05 Mar 2000) |
| Budin's obstetrical joint | Cartilaginous union between the squamous and lateral parts of the occipital bone in the newborn. Synonym: synchondrosis intraoccipitalis posterior, Budin's obstetrical joint, posterior intraoccipital joint. (05 Mar 2000) |
| butting joint | A joint between two pieces of timber or wood, at the end of one or both, and either at right angles or oblique to the grain, as the joints which the struts and braces form with the truss posts; sometimes called abutting joint. Source: Websters Dictionary (01 Mar 1998) |
| calcaneocuboid joint | A somewhat saddle-shaped synovial joint between the anterior surface of the calcaneus and the posterior surface of the cuboid. This is the lateral element of the compound transverse tarsal joint. Synonym: articulatio calcaneocuboidea. (05 Mar 2000) |
| cambium layer | The inner osteogenic layer of the periosteum, a highly cellular zone immediately beneath the epithelium covering a botryoid sarcoma. (05 Mar 2000) |