tricrotic, a. Physiol.
(traɪˈkrɒtɪk)
[f. tri-, after dicrotic; cf. Gr. τρίκροτος rowed with triple stroke, as a trireme.]
Of the pulse or a sphygmographic tracing: Having or showing three undulations for each beat of the heart. tricrotic wave, the third of such undulations. So ˈtricrotism, tricrotic condition; ˈtricrotous a. = tricrotic.
| 1876 tr. Wagner's Gen. Pathol. (ed. 6) 630 The pulse of aged persons is tricrotic. 1877 Roberts Handbk. Med. (ed. 3) II. 21 This form of pulsation is sometimes called tricrotous. 1890 Billings, Tricrotic wave, the third curve of the sphygmogram. 1891 Cent. Dict., Tricrotism. 1913 Dorland Med. Dict. s.v. Pulse, Tricrotic pulse, one that is marked by three abnormally distinct sphygmographic waves to the pulse-beat. |