refractory


refractory
refractory [ri frak′tər ē]
adj.
[altered < obs. refractary < L refractarius < refractus: see REFRACT]
1. hard to manage; stubborn; obstinate: said of a person or animal
2. resistant to heat; hard to melt or work: said of ores or metals
3.
a) not yielding to treatment, as a disease
b) able to resist disease
n.
pl. refractories
something refractory; specif., a heat-resistant material used in lining furnaces, etc.
refractorily
adv.
refractoriness
n.

English World dictionary. . 2014.

Synonyms: