| retention arm | A flexible segment of a removable partial denture that engages an undercut on an abutment and is designed to retain the denture. (05 Mar 2000) |
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| retention cyst | A cyst resulting from some obstruction to the excretory duct of a gland. Synonym: distention cyst, secretory cyst. (05 Mar 2000) |
| retention form | The shape of a cavity preparation that prevents displacement of the dental restoration by lateral or tipping forces as well as masticatory forces. (05 Mar 2000) |
| retention groove | One of the groove's forming opposing vertical constrictions in a tooth to aid in retention of a dental restoration. (05 Mar 2000) |
| retention jaundice | Jaundice due to insufficiency of liver function or to an excess of bile pigment production; the bilirubin is unconjugated because it has not passed through the liver cells; van den Bergh test is indirect. (05 Mar 2000) |
| retention point | A provision made within a cavity preparation of a tooth to hold in place the first pieces of gold when placing a direct gold restoration. (05 Mar 2000) |
| retention polyp | A smoothly rounded mucosal hamartoma of the large bowel, which may be multiple and cause rectal bleeding, especially in the first decade of life; it is not precancerous. Synonym: retention polyp. (05 Mar 2000) |
| retention suture | <surgery> A heavy reinforcing suture placed deep within the muscles and fasciae of the abdominal wall to relieve tension on the primary suture line and thus obviate postoperative wound disruption. Synonym: tension suture. (05 Mar 2000) |
| retention vomiting | <gastroenterology, physiology> Vomiting due to mechanical obstruction, usually hours after ingestion of a meal. (05 Mar 2000) |
| chylomicron retention disease | An inherited disorder in which apolipoprotein B-48 is retained in intestine and absent in plasma; results in fat malabsorption. (05 Mar 2000) |
| dental prosthesis retention | The retention of a dental prosthesis in place by design, device, or adhesion. (12 Dec 1998) |
| denture retention | The retention of a denture in place by design, device, or adhesion. (12 Dec 1998) |
| direct retention | Retention obtained in a removable partial denture by the use of attachments or clasps which resist their removal from the abutment teeth. (05 Mar 2000) |
| indirect retention | Retention obtained in a removable partial denture through the use of indirect retainers. (05 Mar 2000) |
| oil retention enema | A rectal injection of mineral oil, introduced at low pressure and retained for several hours before expelling, to soften faeces. (05 Mar 2000) |