Refusing to move or to change one's opinion; obstinate; firmly resisting; persistent in doing something.
Of materials: physically stiff and inflexible; not easily melted or worked.
Stubbornness.
A disease of citrus trees characterized by stunted growth and misshapen fruit, caused by Spiroplasma citri.
Willing to receive instruction or to learn; docile.
That can be taught.
Capable of being taught; apt to learn.
Facilitating teaching; instructive.