synchronical en · ADJ
Etymology
Compare French synchronique.
Meanings
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(not-comparable) Happening at the same time; synchronous.
it is very difficult to make out, how the air is conveyed into the left ventricle of the heart, especially the systole and diastole of the heart and lungs being very far from being synchronical
1659 December 30 (date written), Robert Boyle, New Experiments Physico-Mechanicall, Touching the Spring of the Air, and Its Effects […], Oxford, Oxfordshire: […] H[enry] Hall, printer to the University, for Tho[mas] Robinson, published 1660, →OCLC: