| 释义 | 
		actin- combining form or actini- or actino-  Etymology: New Latin actin- ray, from Greek aktin-, aktino-, from aktin-, aktis; akin to Old English ūhte morning twilight, Old High German ūhta, Old Norse ōtta, Gothic ūhtwo, Sanskrit aktu light, night, Latin noct-, nox night — more at night 1.   a.  : having a radiated structure   < Actinopoda >   < Actinomyces >  b.  : actinian   < actiniform >   < Actinozoa > 2.   a.  : actinic   < actinautography >  b.  : of, relating to, or caused by actinic radiation (as X rays)   < actinotherapy > |