English Words Starting With D

• delphi technique

  nounC1/C2
  /ˈdɛlfaɪ tɛkˈniːk/A structured communication method used to achieve a convergence of opinion from a panel of experts through multiple rounds of anonymous questionnaires with controlled feedback.
• delphian

  adjectivenounVery Rare
  /ˈdɛlfɪən/Relating to the ancient Greek oracle at Delphi; hence, ambiguous or obscure in meaning.
• delphic oracle

  nounC2
  /ˌdelfɪk ˈɒrək(ə)l/The priestess (Pythia) and the shrine of Apollo at Delphi in ancient Greece, through which prophecies were delivered.
• delphinia

  nounLow (Specialist/Botanical)
  /dɛlˈfɪnɪə/A flowering plant of the genus Delphinium, characterized by tall spikes of colorful, spurred flowers.
• delphinin

  nounRare
  /dɛlˈfɪnɪn/A blue crystalline pigment (an anthocyanin) found in some flowers, especially larkspurs.
• delphinine

  nounRare
  /ˈdɛlfɪnaɪn/A highly poisonous alkaloid found in certain plants of the larkspur family (genus Delphinium).
• delphinium

  nounLow
  /dɛlˈfɪnɪəm/A tall garden plant with spikes of showy blue flowers.
• delphinus

  nounVery Low
  /dɛlˈfaɪnəs/A small northern constellation situated between Pegasus and Aquila, representing a dolphin.
• delray beach

  nounC1
  /ˌdɛlreɪ ˈbiːtʃ/A coastal city in Palm Beach County, Florida, United States, known for its beaches, downtown area, and cultural events.
• delsarte

  nounLow
  /dɛlˈsɑːt/A system of expression, gesture, and posture for performance, especially in oratory and drama.
• delsarte method

  nounVery low
  /dɛlˈsɑːt ˈmɛθəd/A system of dramatic expression and gesture developed by François Delsarte, emphasizing the use of specific body postures and movements to convey emotional states.
• delsarte system

  nounVery Low
  /ˌdɛlˈsɑːt ˌsɪs.təm/A systematic theory and method of acting, oratory, and physical expression developed by François Delsarte in the 19th century, based on symbolic correspondences between emotional states and specific bodily postures, gestures, and vocal qualities.
• delta

  nounB2
  /ˈdeltə/The fourth letter of the Greek alphabet (Δ, δ). In its capitalized form, it commonly represents a triangle-shaped landform where a river splits and spreads out into several branches before entering a sea or lake.
• delta connection

  nounLow
  /ˈdeltə kəˈnɛkʃ(ə)n/A specific three-phase electrical circuit configuration where the windings of a transformer or motor are connected in a triangular (Δ) shape, forming a closed loop.
• delta force

  nounlow
  /ˈdeltə fɔːs/A specific United States Army Special Forces operational unit.
• delta function

  nounC1+ (Very Low Frequency in General English, High in Technical/STEM contexts)
  /ˈdeltə ˌfʌŋkʃ(ə)n/A theoretical mathematical function, used especially in physics and engineering, that is zero everywhere except at a single point where its value is infinite, such that its total integral is one.
• delta iron

  nounVery Low
  /ˈdeltə ˈaɪən/A non-magnetic, high-temperature allotrope of iron with a body-centered cubic crystal structure, stable between 1394°C and 1538°C.
• delta particle

  nounVery Low (C2)
  /ˈdeltə ˌpɑːtɪk(ə)l/A short-lived subatomic particle (baryon) with a +2, +1, or -1 electric charge, part of the delta baryon family in particle physics.
• delta ray

  nounVery Rare (Specialised Technical)
  /ˈdɛltə ˌreɪ/A secondary electron ejected from matter when ionizing radiation (like an alpha particle) passes through it.
• delta rhythm

  nounC2 (Highly Technical/Specialised)
  /ˈdeltə ˌrɪðəm/A pattern of high-amplitude, slow brain waves (0.5-4 Hz) seen in deep, dreamless sleep or in certain brain disorders.

Showing 1821–1840 of 7181 words.