subscapulo-comb. form
Stress is usually determined by a subsequent element and vowels may be reduced accordingly. Some degree of stress is always maintained on the second syllable. If the subsequent element is an existing word, it is likely to retain its original stress pattern, e.g.
subscapulo-cardinal Brit. 
/sʌbˌskapjᵿləʊˈkɑːdᵻnl/,
/sʌbˌskapjᵿləʊˈkɑːdn̩l/,
U.S. /ˌsəbˌskæpjəloʊˈkɑrdn̩əl/,
/ˌsəbˌskæpjəloʊˈkɑrdən(ə)l/.
Origin: Formed within English, by derivation; modelled on a French lexical item. Etymons: subscapular adj., -o- connective.
Etymology: < subscapul- (in subscapular adj.) + -o- connective, after French sous-scapulo- (1800 or earlier). Compare scientific Latin subscapulo- (1795 or earlier), forming the names of a small number of muscles, as subscapulo-brachialis , subscapulo-hyoideus , subscapulo-capsularis , etc. Compare scapulo- comb. form.Compare the following examples of scientific Latin muscle names used in an English context:1831 W. Youatt Horse viii. 119 (caption) The subscapulo hyoideus, from under the shoulder-blade, to the body of the os hyoides.1876 Quain's Elements Anat. (ed. 8) I. 203 A small additional muscle..passing from the surface of the subscapularis over the capsular ligament,..the subscapulo-capsularis of Wenzel Gruber.
Anatomy and
Zoology.
rare.
1830 J. W. Sterling tr. A. A. L. M. Velpeau I. 236 The Circumflex..turns in order to pass under the cervix humeri through the sub-scapulo-humeral aperture [Fr. l'ouverture sous-scapulo-humérale].
1875 25 498 The subscapulo-humeral slip joins the rest of the muscle at its insertion.
1924 (Royal Soc.) B. 212 239 The main stem of the vessel passes on upon the postero-mesial wall of the subscapulo-cardinal sinus.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
comb. form1830