English Words Starting With N

• natural immunity

  nounB2
  /ˌnætʃ.ər.əl ɪˈmjuː.nə.ti/The body's inherent ability to resist a disease or infection without prior exposure or vaccination, involving innate immune responses like physical barriers, inflammation, and non-specific cells.
• natural justice

  nounLow
  /ˌnætʃ(ə)rəl ˈdʒʌstɪs/The fundamental principles of fairness in decision-making, especially in legal or administrative contexts.
• natural killer cell

  nounLow (Specialised)
  /ˌnætʃ.rəl ˈkɪlə ˌsel/A type of lymphocyte (white blood cell) that is part of the innate immune system and can spontaneously kill infected or cancerous cells without prior activation.
• natural language

  nounB2
  /ˌnætʃ.ər.əl ˈlæŋ.ɡwɪdʒ/A human language that has evolved naturally through use and repetition within a community, such as English or Mandarin, as opposed to constructed or formal languages.
• natural language processing

  nounC1
  /ˌnætʃ(ə)rəl ˈlæŋɡwɪdʒ ˈprəʊsesɪŋ/A branch of artificial intelligence concerned with enabling computers to understand, interpret, and generate human language.
• natural law

  nounC1
  /ˌnætʃrəl ˈlɔː/The philosophical concept of a system of rights or justice inherent in human nature and universally discoverable by reason, independent of man-made laws.
• natural levee

  nounC2
  /ˌnætʃ.ər.əl ˈlev.i/A raised bank of sediment deposited naturally by a river along its banks during floods, often confining the river channel.
• natural logarithm

  nounLow
  /ˌnætʃ(ə)rəl ˈlɒɡərɪð(ə)m/A logarithm to the base of the mathematical constant e (approximately 2.71828).
• natural number

  nounLow in general discourse; very high in mathematical/technical contexts.
  /ˈnætʃrəl ˈnʌmbə/In mathematics, a positive integer (1, 2, 3, ...). Some definitions include zero (0, 1, 2, 3, ...).
• natural parent

  nounC1-C2
  /ˌnætʃ.ər.əl ˈpeə.rənt/A biological mother or father of a child.
• natural person

  nounC2
  /ˌnætʃ.ər.əl ˈpɜː.sən/A living human individual, as opposed to a legal person (e.g., a corporation).
• natural philosophy

  nounLow
  /ˌnætʃ(ə)rəl fɪˈlɒsəfi/The historical term for the systematic study of nature and the physical universe, especially before the modern separation into physics, chemistry, biology, and other specific sciences.
• natural rate of unemployment

  nounC1
  /ˌnætʃ.ər.əl ˌreɪt əv ˌʌn.ɪmˈplɔɪ.mənt/The theoretical minimum unemployment rate in a healthy economy, determined by structural and frictional factors, not cyclical ones.
• natural realism

  nounC1
  /ˌnætʃ.ər.əl ˈrɪə.lɪ.zəm/The philosophical position that objects in the physical world exist independently of human perception or mental concepts.
• natural religion

  nounC2 (Extremely low frequency)
  /ˈnætʃrəl rɪˈlɪdʒən/A system of religious belief and practice derived from reason, observation of nature, and innate human conscience, without reliance on divine revelation, scripture, or supernatural events.
• natural resistance

  nounMedium
  /ˈnætʃ(ə)rəl rɪˈzɪst(ə)ns/An inherent or innate ability of an organism, system, or entity to withstand or oppose damage, disease, influence, or change, without external intervention.
• natural resource

  nounB2
  /ˌnætʃ.ər.əl rɪˈzɔːs/A material or substance that occurs naturally in the environment and can be used by humans for economic gain or survival, such as water, minerals, forests, or fossil fuels.
• natural resources

  plural-nounB2
  /ˌnætʃ.ər.əl rɪˈzɔː.sɪz/Materials and substances that occur in nature and can be used for economic gain, such as water, minerals, forests, and fossil fuels.
• natural right

  nounC2
  /ˌnætʃ.ər.əl ˈraɪt/A right considered inherent to human nature, existing independently of government or laws, such as life, liberty, or property.
• natural science

  nounB2
  /ˌnætʃ.ər.əl ˈsaɪ.əns/A branch of science that deals with the description, prediction, and understanding of natural phenomena, based on empirical evidence from observation and experimentation.

Showing 561–580 of 3475 words.