like the Sphinx; enigmatic or inscrutable
noun 1. hawk moth. noun 1. (US & Canadian) another name for the hawk moth
[sfruh-jis-tiks] /sfrəˈdʒɪs tɪks/ noun, (used with a singular verb) 1. the scientific study of seals or signet rings. sphragistics /sfrəˈdʒɪstɪks/ noun 1. (functioning as sing) the study of seals and signet rings
adjective, Physiology, Medicine/Medical. 1. of or relating to the pulse. adjective 1. (physiol) of or relating to the pulse sphygmic sphyg·mic (sfĭg’mĭk) adj. Of or relating to the pulse.
- Sphygmic interval
sphygmic interval n. The period in the cardiac cycle when the semilunar valves are open and blood is ejected from the ventricles into the arterial system. Also called ejection period, sphygmic period.