| DKB | deep knee bends |
|---|---|
| DL | danger list; De Lee [catheter]; deep lobe; developmental level; difference limen; diffusion lung [ca... |
| DP | data processing; deep pulse; definitive procedure; degradation product; degree of polymerization; de... |
| DSI | deep shock insulin; Depression Status Inventory; disulfide isomerase; Down Syndrome International |
| DSNI | deep space neck infection |
| PVE | pseudostratified ventricular epithelium |
|---|---|
| RE | respiratory epithelium |
| lens pits | The paired depressions formed in the superficial ectoderm of the embryonic head as the lens placodes sink in toward the optic cup; the external openings of the pit's are closed as the lens vesicles are formed. (05 Mar 2000) |
|---|---|
| lens placodes | Paired ectodermal placode's that become invaginated to form the embryonic lens vesicles. Synonym: optic placodes. (05 Mar 2000) |
| lens, simple | <microscopy> A glass disk ground and polished with a spherical figure on one side and a plano, concave, or convex configuration on the other side. (05 Aug 1998) |
| lens stars | Congenital cataracts with opacities along the suture lines of the lens; may be anterior or posterior or both. (05 Mar 2000) |
| lens subluxation | Incomplete rupture of the zonule with the displaced lens remaining behind the pupil. In dislocation, or complete rupture, the lens is displaced forward into the anterior chamber or backward into the vitreous body. When congenital, this condition is known as ectopia lentis. (12 Dec 1998) |
| lens sutures | 9 to 12 faint lines on the anterior and posterior surfaces of the lens that radiate from the poles toward the equator; they mark the lines along which the ends of lens fibres abut. Synonym: lens stars, lens sutures. (05 Mar 2000) |
| lens vesicle | In the embryo, the ectodermal invagination that forms opposite the optic cup; it is the primordium of the lens of the eye. Synonym: lenticular vesicle. (05 Mar 2000) |
| lighthouse lens | <physics> A lens built up, progressively, in zones or steps, each zone with its own individual radius. Considerable spherical correction is attained, and the weight of the lens is greatly reduced. Fresnel lenses were originally designed for lighthouses but they are now attainable for small spotlights, automobile headlights, and similar uses. (05 Aug 1998) |
| anterior deep cervical lymph nodes | The lymph nodes near the larynx, trachea, and thyroid gland. Synonym: nodi lymphatici cervicales anteriores profundi. (05 Mar 2000) |
| rapture of the deep | See: nitrogen narcosis. (05 Mar 2000) |
| preauricular deep parotid lymph nodes | Small lymph nodes located deep to the parotid fascia and in front of the ear. Synonym: preauricular deep parotid lymph nodes. (05 Mar 2000) |
| skin-deep | Not deeper than the skin; hence, superficial. Source: Websters Dictionary (01 Mar 1998) |
| small deep petrosal nerve | <anatomy, nerve> One of two sympathetic branches from the internal carotid plexus to the tympanic plexus. Synonym: nervus caroticotympanicus, small deep petrosal nerve. (05 Mar 2000) |
| superficial layer of deep cervical fascia | The part of the cervical fascia investing the sternocleidomastoid and trapezius muscles and completely encircling the neck. Synonym: lamina superficialis fasciae cervicalis, investing fascia, superficial layer of deep cervical fascia. (05 Mar 2000) |
| deep | 1. Extending far below the surface; of great perpendicular dimension (measured from the surface downward, and distinguished from high, which is measured upward); far to the bottom; having a certain depth; as, a deep sea. "The water where the brook is deep." (Shak) 2. Extending far back from the front or outer part; of great horizontal dimension (measured backward from the front or nearer part, mouth, etc); as, a deep cave or recess or wound; a gallery ten seats deep; a company of soldiers six files deep. "Shadowing squadrons deep." (Milton) "Safely in harbor Is the king's ship in the deep nook." (Shak) 3. Low in situation; lying far below the general surface; as, a deep valley. 4. Hard to penetrate or comprehend; profound; opposed to shallow or superficial; intricate; mysterious; not obvious; obscure; as, a deep subject or plot. "Speculations high or deep." (Milton) "A question deep almost as the mystery of life." (De Quincey) "O Lord, . . . Thy thought are very deep." (Ps. Xcii. 5) 5. Of penetrating or far-reaching intellect; not superficial; thoroughly skilled; sagacious; cunning. "Deep clerks she dumbs." (Shak) 6. Profound; thorough; complete; unmixed; intense; heavy; heartfelt; as, deep distress; deep melancholy; deep horror. "Deep despair." . "Deep silence." . "Deep sleep." . "Deeper darkness." . "Their deep poverty." . "An attitude of deep respect." (Motley) 7. Strongly coloured; dark; intense; not light or thin; as, deep blue or crimson. 8. Of low tone; full-toned; not high or sharp; grave; heavy. "The deep thunder." "The bass of heaven's deep organ." (Milton) 9. Muddy; boggy; sandy; said of roads. "The ways in that vale were very deep." (Clarendon) A deep line of operations, mourning complete and strongly marked, the garments being not only all black, but also composed of lusterless materials and of such fashion as is identified with mourning garments. Origin: OE. Dep, deop, AS. Deop; akin to D. Diep, G. Tief, Icel. Djpr, Sw. Diup, Dan. Dyb, Goth. Diups; fr. The root of E. Dip, dive. See Dip, Dive. Source: Websters Dictionary (01 Mar 1998) |