A thermionic valve similar to a tetrode with the addition of a third grid, the suppressor grid to reduce the secondary emission effect; was/is used in high quality audio and radio products.

(transitive) To place a curse upon (a person or object). / To call upon divine or supernatural power to send injury upon; to imprecate evil upon; to execrate.

Alternative form of melastatin

simple past tense and past participle of outtrain