express recognition of the presence or existence of, or acquaintance with
notice
Verb
notice or perceive
notice
Verb
discover or determine the existence, presence, or fact of
needle biopsy
Noun
biopsy of deep tissue that is obtained through a hollow needle
network topology
Noun
the configuration of a communication network
nightmare
Noun
a terrifying or deeply upsetting dream
nightmare
Noun
a situation resembling a terrifying dream
non sequitur
Noun
a logical conclusion that does not follow from the premises
non sequitur
Noun
a reply that has no relevance to what preceded it
natural history
Noun
the scientific study of plants or animals (more observational than experimental) usually published in popular magazines rather than in academic journals
nature study
Noun
the study of animals and plants in the natural world (usually at an elementary level)
navel-gazing
Noun
literally, the contemplation of one's navel, which is an idiom usually meaning complacent self-absorption
noumenon
Noun
the intellectual conception of a thing as it is in itself, not as it is known through perception
necromancy
Noun
conjuring up the dead, especially for prophesying
necromancy
Noun
the belief in magical spells that harness occult forces or evil spirits to produce unnatural effects in the world
nuisance
Noun
(law) a broad legal concept including anything that disturbs the reasonable use of your property or endangers life and health or is offensive
nuisance
Noun
a bothersome annoying person
nook and cranny
Noun
something remote
nooks and crannies
Noun
something remote
natural law
Noun
a rule or body of rules of conduct inherent in human nature and essential to or binding upon human society
numerical quantity
Noun
a quantity expressed as a number
negative stimulation
Noun
something causing antagonism or loss of interest
negative reinforcing stimulus
Noun
a reinforcing stimulus whose removal serves to decrease the likelihood of the response that produced it
negative reinforcer
Noun
a reinforcing stimulus whose removal serves to decrease the likelihood of the response that produced it
negative stimulus
Noun
a stimulus with undesirable consequences
nebular hypothesis
Noun
(cosmology) the theory that the solar system evolved from a hot gaseous nebula
nitty-gritty
Noun
the choicest or most essential or most vital part of some idea or experience
name part
Noun
the role of the character after whom the play is named
nature worship
Noun
a system of religion that deifies and worships natural forces and phenomena
nub
Noun
the choicest or most essential or most vital part of some idea or experience
nub
Noun
a small piece
nub
Noun
a small lump or protuberance
nihilism
Noun
a revolutionary doctrine that advocates destruction of the social system for its own sake
nihilism
Noun
complete denial of all established authority and institutions
nihilism
Noun
the delusion that things, or everything, including the self, do not exist
no-goal
Noun
a nonexistent goal
natural science
Noun
the sciences involved in the study of the physical world and its phenomena
nescience
Noun
ignorance (especially of orthodox beliefs)
nativism
Noun
(philosophy) the philosophical theory that some ideas are innate
nativism
Noun
the policy of perpetuating native cultures (in opposition to acculturation)
naturalism
Noun
(philosophy) the doctrine that the world can be understood in scientific terms without recourse to spiritual or supernatural explanations
naturalism
Noun
an artistic movement in 19th century France
nominalism
Noun
(philosophy) the doctrine that the various objects labeled by the same term have nothing in common but their name
naive realism
Noun
(philosophy) the philosophical doctrine that physical objects continue to exist when not perceived
non-Euclidean geometry
Noun
(mathematics) geometry based on axioms different from Euclid's
norm
Noun
a statistic describing the location of a distribution
norm
Noun
a standard or model or pattern regarded as typical
numerical analysis
Noun
(mathematics) the branch of mathematics that studies algorithms for approximating solutions to problems in the infinitesimal calculus
normal distribution
Noun
a theoretical distribution with finite mean and variance