Photographic prints having images composed of a range of tones within one hue, plus the neutral tones.
Transparency having images composed of gray tones, black, and clear areas; may include one hue as a result of process, toning, or discoloration.
A board with a smooth usually dark surface for writing on with chalk
A muscular sac that stores urine, ready for excretion.
Forms whose spaces provided for information have not been filled.
A framework of metal strips or other material that forms a cage over an injured part of the body of a patient lying in bed, to protect it from the pressure of the bedclothes.
The exhaust steam pipe running from the valve chests into the smokebox box ending directly below the chimney.
blast pipe jimmy
An illegal implement used by steam locomotive drivers, fitted across the blast pipe to increase combustion by splitting the blast and causing a greater draw on the smokebox gases.
A shallow bowl four to six inches in diameter, with one flat handle which is usually flush with the rim. Used by barber-surgeons in the 1600s and 1700s when bleeding a patient.
The inability to see light.
The process in which the body forms blisters. When the top layer of skin is damaged a blister, a small sac of liquid, forms to protect the soft tissue underneath.
An electrically powered system of audible communication between signal boxes.
blood (animal material)
Fluid that circulates in the principal vascular system of vertebrate animals. W.
Where the blood changes within the body from a liquid to a solid state and produces a mass of clotted blood which can restrict blood flow.
The donation of blood for the purposes of transfusion or testing.
blood glucose meter
A machine that tests the level of glucose in the blood. Blood is deposited on a special strip which is then inserted into the machine to give a reading.
To puncture a vein for the purpose of withdrawing blood. A tremendously popular medical practice for over 2000 years. Blood letting can involve withdrawing large quantities of blood in the belief that this would cure or prevent many illnesses and diseases. The practice has been abandoned for all except a few very specific conditions.
blood letting needle
Needle used in Oriential Medicine for the process of blood letting
The damage caused from absorbing harmful bacteria and toxins from the bloodstream.
The pressure at which blood is pumped around the body, closely related to the heart rate.