semi-trailing adjective3 •Having a movement that pivots on an access which is at an angle between longitudinal and transverse.Swivelling of these semi-trailing arms is therefore neither true transverse or true trailing but is a combination of both. — 2002 •Having stems thick enough to stand somewhat erect, but eventually drooping like a vine.The latter method must be used for some varieties that are semi-trailing and for the frankly trailing sorts, such as the dewberry and youngberry. — 1957 •Having an opening syllable that is the continuation of a preceding line and including a syntactic break such as a comma or full stop somewhere after that but before the end.