Abbreviator (n.)
definition: One of a college of seventy-two officers of the papal court whose duty is to make a short minute of a decision on a petition
Or reply of the pope to a letter and afterwards expand the minute into official form.
Abbreviator is an 11 letter word that begins with an A and ends in an R

Abbreviator (n.)
definition: One who abbreviates or shortens.

Abbreviator is an 11 letter word that begins with an A and ends in an R

Aberuncator (n.)
definition: A weeding machine.

Aberuncator is an 11 letter word that begins with an A and ends in an R

Accelerator (n.)
definition: One who
Or that which accelerates. Also as an adj.; as accelerator nerves.
Accelerator is an 11 letter word that begins with an A and ends in an R

Accompanier (n.)
definition: He who
Or that which accompanies.
Accompanier is an 11 letter word that begins with an A and ends in an R

Accumulator (n.)
definition: A system of elastic springs for relieving the strain upon a rope
As in deep-sea dredging.
Accumulator is an 11 letter word that begins with an A and ends in an R

Accumulator (n.)
definition: An apparatus by means of which energy or power can be stored
Such as the cylinder or tank for storing water for hydraulic elevators the secondary or storage battery used for accumulating the energy of electrical charges etc.
Accumulator is an 11 letter word that begins with an A and ends in an R

Accumulator (n.)
definition: One who
Or that which accumulates collects or amasses.
Accumulator is an 11 letter word that begins with an A and ends in an R

Actinometer (n.)
definition: An instrument for measuring the actinic effect of rays of light.

Actinometer is an 11 letter word that begins with an A and ends in an R

Actinometer (n.)
definition: An instrument for measuring the direct heating power of the sun's rays.

Actinometer is an 11 letter word that begins with an A and ends in an R

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