Definitions for "Gertrude"
Keywords:  asw, uqc, submarines, underwater, ships
The UQC. The underwater telephone used to communicate with other ships and submarines (i.e. "targets"). When used during ASW exercises it was usually to ask "where" the target was...
In William Shakespeare's play Hamlet, Gertrude is Hamlet's mother and Queen of Denmark.
Keywords:  underdress, infants, slip
A slip or underdress for infants.