Negaprion brevirostris
— Noun
– English
~ common shallow-water schooling shark of the Atlantic from North Carolina to Brazil and off west Africa; dangerous
negate
— Verb
– English
~ make ineffective by counterbalancing the effect of; "Her optimism neutralizes his gloom"; "This action will negate the effect of my efforts"
negate
— Verb
– English
~ prove negative; show to be false