| 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) |
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| deep abdominal reflexes | Contraction of abdominal muscles elicited by stimulation, such as tapping a deep structure; e.g., the costal margin. See: Galant's reflex, upper abdominal periosteal reflex. (05 Mar 2000) |
| deep artery of clitoris | The deep terminal branch of the internal pudendal artery in the female; it supplies the crus of the clitoris. Synonym: arteria profunda clitoridis. (05 Mar 2000) |
| deep artery of penis | Origin, terminal branch (with dorsal artery of penis) of the internal pudendal artery; distribution, corpus cavernosum of the penis via capillary beds and via helcine arteries and arteriovenous anastomoses to produce erection. Synonym: arteria profunda penis. (05 Mar 2000) |
| deep artery of thigh | <anatomy, artery> Origin, femoral; branches, lateral circumflex femoral, medial circumflex femoral, terminating in three or four perforating arteries. Synonym: arteria profunda femoris, deep artery of thigh. (05 Mar 2000) |
| deep artery of tongue | <anatomy, artery> Termination of lingual artery, distribution, muscles and mucous membrane of under surface of tongue. Synonym: arteria profunda linguae, arteria ranina, deep artery of tongue, ranine artery. (05 Mar 2000) |
| deep auricular artery | <anatomy, artery> Origin, first part of maxillary; distribution, articulation of jaw, parotid gland, and external acoustic meatus and external tympanic membrane; anastomoses, auricular branches of superficial temporal and posterior auricular. Synonym: arteria auricularis profunda. (05 Mar 2000) |
| deep bite | <dentistry> Excessive overbite, closed bite. (08 Jan 1998) |
| deep brachial artery | <anatomy, artery> Origin, brachial; distribution, humerus and muscles and integument of arm; anastomoses, posterior circumflex humeral, radial recurrent, recurrent interosseous, ulnar collateral, i.e., articular vascular network of elbow. Synonym: arteria profunda brachii, deep brachial artery. (05 Mar 2000) |
| deep branch | Branch which passes deeply, beneath, or farther from surface; usually in contrast to a superficial branch. Synonym: ramus profundus. (05 Mar 2000) |
| deep branch of the medial femoral circumflex artery | <anatomy, artery> Distributed to posterior aspect of femoral head and neck. Synonym: ramus profundus arteriae circumflexae femoris medialis. (05 Mar 2000) |
| deep branch of the medial plantar artery | <anatomy, artery> Branch running deep to abductor hallucis, supplying it and the flexor hallucis brevis muscle deep to the artery and the skin of the medial side of the distal foot. Synonym: rami profundi arteriae circumflexae femoris medialis. (05 Mar 2000) |
| deep branch of the radial nerve | <anatomy, nerve> The deep terminal branch of the radial nerve, arises in the cubital region, penetrating and supplying the supinator and continuing with the posterior interosseous artery to supply all the extensor muscles in the forearm. Synonym: nervus interosseus posterior, nervus antebrachii posterior, deep branch of the radial nerve, dorsal interosseous nerve, nervus interosseus dorsalis, posterior antebrachial nerve. (05 Mar 2000) |
| deep branch of the ulnar nerve | <anatomy, nerve> Accompanies deep palmar branch of ulnar artery and deep palmar arch to supply wrist joint, lumbricals 3 & 4, palmar and dorsal interossei adductor pollicis and deep head of flexor pollicis brevis muscles. Synonym: ramus profundus nervi ulnaris. (05 Mar 2000) |
| deep cardiac plexus | The deeper part of the cardiac plexus. Synonym: plexus cardiacus profundus. (05 Mar 2000) |