What is the definition of the word refractory?

What is the definition of the word refractory?

1 : resisting control or authority : stubborn, unmanageable. 2a : resistant to treatment or cure a refractory lesion. b : unresponsive to stimulus. c : immune, insusceptible after recovery they were refractory to infection. 3 : difficult to fuse, corrode, or draw out especially : capable of enduring high temperature.

What does it mean when cancer is refractory?

Listen to pronunciation. (reh-FRAK-tor-ee KAN-ser) Cancer that does not respond to treatment. The cancer may be resistant at the beginning of treatment or it may become resistant during treatment.

What is the meaning of refractory solid?

A refractory material or refractory is a material that is resistant to decomposition by heat, pressure, or chemical attack, and retains strength and form at high temperatures. Refractory materials are used in furnaces, kilns, incinerators, and reactors.

What is refractories and its classification?

Refractories are classified according to their physical form. These are the shaped and unshaped refractories. The shaped is commonly known as refractory bricks and the unshaped as monolithic refractories. Shaped refractories are those which have fixed shapes when delivered to the user.

What are refractory symptoms?

A refractory symptom is one that cannot be adequately controlled despite aggressive efforts to identify a tolerable therapy that does not compromise consciousness (Cherny 1994). A refractory symptom may be subjective and, at times, nonspecific.

What are refractories and their types give examples of each of them?

Depending on temperatures and service conditions of the applications such as boilers, furnaces, kilns, ovens etc, different types of refractories are used.

• Fireclay refractories.
• Silica brick.
• High alumina refractories.
• Magnesite refractories.
• Chromite refractories.
• Zirconia refractories.

What are the characteristics of a good refractory?

A good refractory material should have the following properties:

• It should be able to withstand high temperatures generated in the furnace.
• It should be able to withstand sudden alternating heating and cooling, i.e., thermal shocks.
• It should be able to withstand abrasion and rough usage.

What is the lifespan of someone with multiple myeloma?

Multiple myeloma is an uncommon cancer of the blood. The median length of survival after diagnosis with multiple myeloma is 62 months for Stage I, 44 months for Stage II, and 29 months for Stage III. Life expectancy depends on many factors, including the person’s age, health, kidney function, and more.

What does refractory mean in medical terms?

In medicine, refractory describes a disease or condition which does not respond to attempted forms of treatment. A cancer is said to be refractory when it does not respond to (or is resistant to) cancer treatment.

What does it mean to be refractory?

Definition of refractory. (Entry 1 of 2) 1 : resisting control or authority : stubborn, unmanageable. 2a : resistant to treatment or cure a refractory lesion. b : unresponsive to stimulus.

What is a refractory disorder?

The word “refractory” in general use means stubborn or intractable, and in medicine it is specifically applied to disease that does not respond to treatment. Refractory cancer refers to cancer that may be resistant at the beginning of treatment, or becomes resistant during treatment.

What is refractory mental illness?

REFRACTORY MENTAL ILLNESS. Mental disability or disease which fails to respond to treatment, remaining problematic to cure. REFRACTORY MENTAL ILLNESS: ” Schizophrenia is a refractory mental illness.”.