30 : Idioms & Phrases

Index

30 minutes

  • noun a half of an hour
    half-hour.
WordNet

atomic number 30

  • noun a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs naturally as zinc sulphide in zinc blende
    Zn; zinc.
WordNet