Reddening; blushing:the heart, rubescent and entire...
On my fourth dive of the week, I rounded an outcrop at about 22m to be greeted by a view of a series of rocky pinnacles covered in gorgonians bathed in the rubescent sunlight of a late-autumn afternoon.
Origin
Mid 18th century: from Latin rubescent- 'reddening', from the verb rubescere, from ruber 'red'.