| 释义 |
‖ pre-ˈsternum, præˈsternum
[f. pre- A. 4 b + sternum.]
1. Entom. = prosternum.
1828Stark Elem. Nat. Hist. II. 279 Pre-sternum dilated at its anterior extremity. 1836tr. Cuvier's Anim. Kingd. IV. 141 The præsternum forms a sort of chin-cloth anteriorly.
2. Comp. Anat. The front part of the sternum; the part corresponding to the first segment of the human sternum.
1872Nicholson Palæont. 399 The præsternum is the ‘manubrium sterni’ of human anatomy. 1872Mivart Elem. Anat. 35 The broad upper part to which the first rib is annexed is called the manubrium or pre-sternum.
Hence pre-ˈsternal a., of or pertaining to the pre-sternum, as pre-sternal bone, region, etc.
1890in Webster. |