Siberian peasant monk who was religious advisor in the court of Nicholas II; was assassinated by Russian noblemen who feared that his debauchery would weaken the monarchy (1872-1916)
not changeable or subject to change; "a fixed and unchangeable part of the germ plasm"-Ashley Montagu; "the unchangeable seasons"; "one of the unchangeable facts of life"
the junction between two neurons (axon-to-dendrite) or between a neuron and a muscle; "nerve impulses cross a synapse through the action of neurotransmitters"
a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tubelike structure extending from the base of the brain through the vertebral canal to the upper lumbar region
a tool resembling a hammer but with a large head (usually wooden); used to drive wedges or ram down paving stones or for crushing or beating or flattening or smoothing
a light drumstick with a rounded head that is used to strike percussion instruments
a sports implement with a long handle and a head like a hammer; used in sports (polo or croquet) to hit a ball
a cushion-like device that reduces shock due to contact
a power tool used to buff surfaces
(computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system
an ionic compound that resists changes in its pH
add a buffer (a solution); "buffered saline solution for the eyes"