Comparator :: Comparator (n.) An instrument or machine for comparing anything to be measured with a standard measure; -- applied especially to a machine for comparing standards of length.
Declarator :: Declarator (n.) A form of action by which some right or interest is sought to be judicially declared.
Declaratory :: Declaratory (a.) Making declaration, explanation, or exhibition; making clear or manifest; affirmative; expressive; as, a clause declaratory of the will of the legislature..
Paratonnerre :: Paratonnerre (n.) A conductor of lightning; a lightning rod.
Preparator :: Preparator (n.) One who prepares beforehand, as subjects for dissection, specimens for preservation in collections, etc..
Preparatory :: Preparatory (a.) Preparing the way for anything by previous measures of adaptation; antecedent and adapted to what follows; introductory; preparative; as, a preparatory school; a preparatory condition..
Separator :: Separator (n.) One who, or that which, separates..
Separator :: Separator (n.) A device for depriving steam of particles of water mixed with it.
Separator :: Separator (n.) An apparatus for sorting pulverized ores into grades, or separating them from gangue..
Separator :: Separator (n.) An instrument used for spreading apart the threads of the warp in the loom, etc..