| APPG | aqueous procaine penicillin G |
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| aq | aqueous; water [Lat. aqua] |
| aqu | aqueous |
| ATD | Alzheimer-type dementia; androstatrienedione; anthropomorphic test dummy; antithyroid drug; aqueous ... |
| AVP | abnormal vasopressin; actinomycin-vincristine-Platinol; ambulatory venous pressure; antiviral protei... |
| aqueous vaccine | A vaccine having a liquid vehicle (e.g., physiological salt solution) as distinguished from an emulsion. (05 Mar 2000) |
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| aqueous vein | <anatomy, vein> A tributary of the anterior ciliary vein which receives aqueous humor from the sinus venosus sclerae. (05 Mar 2000) |
| Ascher's aqueous influx phenomenon | The filling of the aqueous vein, which normally carries blood and aqueous, with aqueous, when the junction of the aqueous vein and the recipient vein is partially occluded. Synonym: Ascher's aqueous influx phenomenon. (05 Mar 2000) |
| blood-aqueous barrier | The anatomical mechanism that prevents exchange of materials between the chambers of the eye and the blood. The tight junctions of the nonpigmented epithelium of the ciliary body, the junctions of the iris tissues, and iris blood vessels constitute the blood-aqueous barrier. Lipid-soluble substances such as oxygen and carbon dioxide penetrate the barrier at a high rate. Sodium, larger water-soluble ions, proteins, and other large and medium-sized molecules are restricted. (12 Dec 1998) |