(transitive, colloquial) To render unconscious; to knock out.

plural of spark arrester

Alternative form of spark arrestor

(ichthyology) A type of occular radiance, which is the redirection of infalling light from above, reflecting it into the visual field to illuminate the field of vision, for diurnal active photolocation.

simple past tense and past participle of spark up

Sigmops bathyphilus, a species of bioluminescent deepwater fish that lives in the bathypelagic.