v. Simple past tense and past participle of conceal.
the GNU version of the Collaborative International Dictionary of English
adj. Hidden; kept from sight; secreted.
The Century Dictionary and Cyclopedia
Hidden; secret: specifically, in entomology, said of parts which are hidden by the parts behind them, as the head when the borders of the thorax overlap it so that it cannot be seen from above.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. not accessible to view
adj. hidden on any grounds for any motive
Word Usage
"She noticed the label concealed a seam, a hidden compartment revealed some dark residue."