Synchronously

adv. [f. prec. + -LY².]

  1.  At the same time; simultaneously; contemporaneously.

1793.  W. Taylor, in Monthly Rev., X. 375. To mistrust the opinion of our perceiving many ideas synchronously.

c. 1865.  J. Wylde’s Circ. Sci., I. 270/1. The time-balls … are lowered synchronously with that of Greenwich.

1881.  J. S. Gardner, in Nature, 13 Oct., 558/2. Next, almost synchronously, Gymnosperms are met with.

1899.  Allbutt’s Syst. Med., VII. 674. Symptoms of arterial ischæmia may occur synchronously with those of basal meningitis.

  b.  transf. In relation to the same times or periods; in accordance with contemporary conditions.

1843.  Civil Eng. & Arch. Jrnl., VI. 160/1. Are the architects of the present day alone to be limited to the servile imitation of styles gone before, and their whole intelligence limited to treating them synchronously?

  2.  (with reference to recurrent or periodic movement): At the same successive instants of time; at the same rate and exactly together; in time with.

1822–7.  Good, Study Med. (1829), II. 33. That the pulse, if the systole of the heart were the only projectile force, must take place, not synchronously all over the system,… but … successively through the whole line of the arterial tubes.

c. 1865.  in J. Wylde’s Circ. Sci., I. 214/2. These alternations take place … synchronously with the reversals of the currents.

1893.  Sir R. Ball, Story of Sun, 19. The instrument is moved synchronously with the revolution of the heavens.

  ¶  erron. At a uniform rate, uniformly.

1862.  R. H. Patterson, Ess. Hist. & Art, 67. Sonorous bodies … are those whose parts easily vibrate synchronously, so as to give out clear musical sounds.

1872.  Cohen, Dis. Throat, 18. The patient should breathe rather deeply, but quietly, synchronously, and without effort.

  So Synchronousness, the quality or condition of being synchronous; synchronism.

In recent Dicts.