\ɪvəlˈuːʃən], \ɪvəlˈuːʃən], \ɪ_v_ə_l_ˈuː_ʃ_ə_n]\
Definitions of EVOLUTION, SPONTANEOUS
- 1898 - Warner's pocket medical dictionary of today.
- 1846 - Medical lexicon: a dictionary of medical science
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By William R. Warner
A term, applied, by Dr. Denman, to what he considered to be a spontaneous turning of the fetus in utero, in an arm presentation, in consequence of powerful uterine contractions forcing out the breech and feet, whilst the arm recedes. It is now usually considered to be a doubling of the foetus, no that the arm changes its position but little, whilst the breech is forcibly expelled before the upper extremity ;-the case becoming similar to a breech presentation.
By Robley Dunglison