See Also: countermeasure(dictionary)

opalescent (iou) and countermeasure (oh)


opalescent (iou)



opalescent adjective. E19.
[from OPAL + -ESCENT.]
Showing varying colours like an opal; having a milky iridescence.
opalescence noun the quality of being opalescent E19.

countermeasure (oh)



an action taken to prevent another action from having a harmful effect
::new countermeasures against terrorism