Constructions which may be viewed as based on overt or covert anaphoric relations or subconstituent coordination do not qualify.
They contribute not only to overt communication but to more covert or accidental forms of information transmission.
Covert channels such as power consumption subvert the assumptions on which high level abstractions are based.
Prepositions of central coincidence can be either overt or covert.
He believes that lack of clarity over rights is leading to covert censorship of the circulation of ideas.
The adult male is deep violet, with a dark green back and wing coverts.
In flight the male has white wings underneath with black barring on the primaries and secondary flight feathers, and light streaking on the underwing coverts.
The golden-olive remiges are typically covered by the long orange wing coverts when perched.
