noun, plural sacra
[sak-ruh, sey-kruh] /ˈsæk rə, ˈseɪ krə/ (Show IPA). Anatomy.
a bone resulting from the fusion of two or more vertebrae between the lumbar and the coccygeal regions, in humans being composed usually of five fused vertebrae and forming the posterior wall of the pelvis.
noun (pl) -cra (-krə)
(in man) the large wedge-shaped bone, consisting of five fused vertebrae, in the lower part of the back
the corresponding part in some other vertebrates
sacrum sa·crum (sā’krəm, sāk’rəm)
n. pl. sa·cra (sā’krə, sāk’rə)
The triangular segment of the spinal column that forms part of the pelvis and closes in the pelvic girdle posteriorly, is formed between the ages of 16 and 25 by the fusion of five originally separate sacral vertebrae, and articulates with the last lumbar vertebra, the coccyx, and the hipbone on either side.
A triangular bone at the base of the spine, above the coccyx (tailbone), that forms the rear section of the pelvis. In humans it is made up of five vertebrae that fuse together by adulthood. See more at skeleton.
SACT sinoatrial conduction time
SACU Southern African Customs Union
adjective, sadder, saddest. 1. affected by unhappiness or grief; sorrowful or mournful: to feel sad because a close friend has moved away. 2. expressive of or characterized by sorrow: sad looks; a sad song. 3. causing sorrow: a sad disappointment; sad news. 4. (of color) somber, dark, or dull; drab. 5. deplorably bad; sorry: a […]
- Sadaharu oh
noun 1. Sadaharu [sah-duh-hahr-oo] /ˌsɑ dəˈhɑr u/ (Show IPA), born 1940, Chinese baseball player and manager in Japan. interjection 1. an exclamation expressive of surprise, pain, pleasure, etc sentence connector 2. an expression used to preface a remark, gain time, etc: oh, I suppose so abbreviation 1. Ohio OH 1. off hand 2. Ohio 3. […]