| calcar avis | The lower of two elevations on the medial wall of the posterior horn of the lateral ventricle of the brain, caused by the depth of the calcarine sulcus. Synonym: Haller's unguis, hippocampus minor, minor hippocampus, Morand's spur, unguis avis. (05 Mar 2000) |
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| nidus avis | A deep depression on each side of the inferior surface of the cerebellum, between the uvula and the biventral lobe, in which the tonsil rests. Synonym: nidus hirundinis. Origin: L. Bird's nest (05 Mar 2000) |
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| unguis avis | The lower of two elevations on the medial wall of the posterior horn of the lateral ventricle of the brain, caused by the depth of the calcarine sulcus. Synonym: Haller's unguis, hippocampus minor, minor hippocampus, Morand's spur, unguis avis. (05 Mar 2000) |
| calcar | 1. A small projection from any structure; internal spurs (septa) at the level of division of arteries and confluence of veins when branches or roots form an acute angle. See: vascular spur. 2. A dull spine or projection from a bone. 3. Archaic term for a horny outgrowth from the skin. Synonym: spur. Origin: L. Spur, cock's spur (05 Mar 2000) |
| calcar femorale | A bony spur springing from the underside of the neck of the femur above and anterior to the lesser trochanter, adding to the strength of this part of the bone. Synonym: Bigelow's septum. (05 Mar 2000) |
| calcar pedis | Synonym: lime. Origin: L. Limestone 2. The posterior rounded extremity of the foot. Synonym: calcar pedis, heel. Origin: L. Heel (05 Mar 2000) |