| vitellus ovi | Yolk of egg; used in pharmacy for emulsifying oils and camphors. (05 Mar 2000) |
|---|---|
| sequestrum / involucrum | <radiology> Sequelae of osteomyelitis, sequestrum, necrotic bone, often denser than surroundings, may be resorbed, discharged through a sinus tract, or persist as a focus of continued infection, involucrum, bone formed beneath elevated periosteum, surrounds sequestrum (12 Dec 1998) |
| involucrum | 1. <botany> See Involucre. 2. <zoology> A sheath which surrounds the base of the lasso cells in the Siphonophora. Origin: L. See Involucre. Source: Websters Dictionary (01 Mar 1998) |
| ovi- | Egg. See: oo-, ovo-. Origin: L. Ovum (05 Mar 2000) |
| secundum | According to. (09 Jan 1998) |
| septum secundum | The second of two major septal structures involved in the partitioning of the atrium, developing later than the septum primum and located to the right of it; like the septum primum, it is crescentic, but its tips are directed toward the sinus venosus, and it is more heavily muscular; it remains an incomplete partition until after birth, with its unclosed area constituting the foramen ovale. (05 Mar 2000) |
| interatrial foramen secundum | A secondary opening appearing in the upper part of the septum primum in the sixth week of embryonic life, just prior to the closure of the interatrial foramen primum. Synonym: ostium secundum, secondary interatrial foramen. (05 Mar 2000) |
| ostium secundum | A secondary opening appearing in the upper part of the septum primum in the sixth week of embryonic life, just prior to the closure of the interatrial foramen primum. Synonym: ostium secundum, secondary interatrial foramen. (05 Mar 2000) |