| dacryocystorhinostomy | Surgical fistulization of the lacrimal sac for external drainage of an obstructed nasolacrimal duct. (12 Dec 1998) |
|---|---|
| dacryocystotomy | Incision of the lacrimal sac. Origin: dacryocyst + G. Tome, incision (05 Mar 2000) |
| dacryohemorrhoea | Bloody tears. Origin: dacryo-+ G. Haima, blood, + rhoia, flow (05 Mar 2000) |
| dacryolith | A concretion in the lacrimal apparatus. Synonym: lacrimal calculus, ophthalmolith, tear stone. Origin: dacryo-+ G. Lithos, stone (05 Mar 2000) |
| dacryolithiasis | The formation and presence of dacryoliths. (05 Mar 2000) |
| dacryon | The point of junction of the frontomaxillary and lacrimomaxillary sutures on the medial wall of the orbit.See figure under craniometric points. Origin: G. A tear (05 Mar 2000) |
| dacryops | 1. Excess of tears in the eye. 2. A cyst of a duct of the lacrimal gland. Origin: dacryo-+ G. Ops, eye (05 Mar 2000) |
| dacryopyorrhoea | The discharge of tears containing leukocytes. Origin: dacryo-+ G. Pyon, pus, + rhoia, flow (05 Mar 2000) |
| dacryorrhoea | <clinical sign> An excessive secretion of tears. (27 Sep 1997) |
| dacryostenosis | <ophthalmology> A blocked nasolacrimal duct which normally carries tears from the eyes to the nose. Commonly seen in infants, but usually resolves spontaneously by age 2-3. In adults blockage can occur from chronic sinusitis or trauma. A gentle massage of the lacrimal gland 2-3 times a day for several months may reopen the tear duct. (27 Sep 1997) |
| dactinomycin | <chemical> An antitumour antibiotic derived from streptomyces parvullus. It binds to DNA and inhibits RNA synthesis (transcription), with chain elongation more sensitive than initiation, termination, or release. As a result of impaired mRNA production, protein synthesis also declines after dactinomycin therapy. Pharmacological action: antibiotics, antineoplastic, antibiotics, peptide, nucleic acid synthesis inhibitors, protein synthesis inhibitor. Chemical name: Actinomycin D (12 Dec 1998) |
| dactyl | 1. A poetical foot of three sylables (y e e), one long followed by two short, or one accented followed by two unaccented; as, L. Tegmine, E. Mer"ciful; so called from the similarity of its arrangement to that of the joints of a finger. Alternative forms: dactyle. 2. <zoology> A finger or toe; a digit. The claw or terminal joint of a leg of an insect or crustacean. Origin: L. Dactylus, Gr. A finger, a dactyl. Cf. Digit. Source: Websters Dictionary (01 Mar 1998) |
| dactylagra | An obsolete term meaning gout for the fingers. Origin: dactyl-+ G. Agra, seizure (05 Mar 2000) |
| dactylalgia | Pain in the fingers. Synonym: dactylodynia. Origin: dactyl-+ G. Algos, pain (05 Mar 2000) |
| dactylar | 1. Pertaining to dactyl; dactylic. 2. <zoology> Of or pertaining to a finger or toe, or to the claw of an insect crustacean. Source: Websters Dictionary (01 Mar 1998) |