pollutant n.

  1. N-VAR Pollutants are substances that pollute the environment, especially gases from vehicles and poisonous chemicals produced as waste by indusrial processes.

zealot n.

  1. N-COUNT If you describe someone as a zealot, you think that their views and actions are very extreme, especially in following a particular political or religious belief.

pumpkin n.

  1. N-VAR A pumpkin is a large, round, orange vegetable with a thick skin.

imaginative adj.

  1. ADJ-GRADED If you describe someone or their ideas as imaginative, you are praising them because they are easily able to think of or create new or exciting things.

tally n./vt./vi.

  1. N-COUNT A tally is a record of amounts or numbers which you keep changing and adding to as the activity which affects it progresses.
  2. V-RECIP If one number or statement tallies with another, they agree with each other or are exactly the same. You can also say that two numbers or statements tally.
  3. VERB If you tally numbers, items, or totals, you count them.

fret n./v.

  1. VERB If you fret about something, you worry about it.
  2. N-COUNT The frets on a musical instrument such as a guitar are the raised lines across in neck.

botanical adj./n.

  1. ADJ Botanical books, research, and activities relate to the scientific study of plants.
  2. N-COUNT Botanicals are drugs which are made from plants.

Paleolithic

islet n.

  1. N-COUNT An islet is a small island.

monotonous adj.

mammal n.