Collins Primary Illustrated Dictionary. Collins Dictionaries

diagonals

      NOUN 1 a straight line that slopes from one corner of a shape to another

      ADJECTIVE 2 in a slanting direction • a diagonal line

      [from Greek diagonios meaning from angle to angle]

      diagram diagrams

      NOUN a drawing that shows or explains something • Carroll or Venn diagram

      dial dials, dialling, dialled

      NOUN 1 the part of a clock or meter where the time or a measurement is shown

      VERB 2 If you dial a telephone number, you press the buttons to select the number you want.

      dialect dialects

      NOUN the form of a language spoken in a particular area

      dialogue dialogues

      NOUN In a novel, play or film, dialogue is conversation.

      diameter diameters

      NOUN the length of a straight line drawn across a circle through its centre

      diamond diamonds

      NOUN 1 a precious stone made of pure carbon

      2 a shape with four straight sides of equal length that are not at right angles to each other

      See rhombus

      diarrhoea

      NOUN an illness that attacks your bowels so that you can’t stop going to the lavatory

      diary diaries

      NOUN a notebook with a separate space or page for each day of the year

      dice dices, dicing, diced

      NOUN 1 a small cube with dots on each of its six faces

      VERB 2 If you dice food, you cut it into small cubes.