slope /sləʊp/ (noun) a surface or piece of land that slopes (= is higher at one end than the other) Example: There are some nice gentle slopes that we can ski down.
stretch /stretʃ/ (verb) to make something longer, wider or looser, for example by pulling it; to become longer, etc. in this way Example: She stretched out her arm and back.
Cactus /ˈkæktəs/ (noun) a plant that grows in hot dry regions, especially one with thick stems covered in spines but without leaves. There are many different types of cactus . Example: Cactus stems are often ribbed or fluted
arid /ˈærɪd/ (adjective) having little or no rain; very dry Example: arid and semi-arid deserts
acacia /əˈkeɪʃə/ (noun) a tree with yellow or white flowers. There are several types of acacia tree, some of which produce a sticky liquid used in making glue . Example: Acacia trees grow in warm parts of the world.
aerial /ˈeriəl/ (noun) a piece of equipment made of wire or long straight pieces of metal for receiving or sending radio and television signals Example: We go up to the Ba Na Hills by aerial tram.
aborigine /ˌæbəˈrɪdʒəni/ (noun) a member of the group of people who were the original people living in a country Example: My friend in Australia is an Aborigine.
aboriginal /ˌæbəˈrɪdʒənl/ (adjective) relating to the original people living in Australia before Europeans arrived Example: His work is inspired by Aboriginal art.
antelope /ˈæntɪləʊp/ (noun) an African or Asian animal, like a deer , that runs very fast. There are many types of antelope . Example: Look at the herd of antelope!
camel /ˈkæml/ (noun) an animal with a long neck and one or two humps on its back, used in desert countries for riding on or for carrying goods Example: Camel races are very popular in Africa.
crest /krest/ (noun) the top part of a hill or wave Example: The crest of the mountain is covered by snow.
dune /duːn/ (noun) a small hill of sand formed by the wind, near the sea or in a desert Example: There are many sand dunes at Mui Ne Beach.
gazelle /ɡəˈzel/ (noun) a small antelope Example: There are some gazelles in the local zoo.
hummock /ˈhʌmək/ (noun) a small hill or pile of earth Example: The ice hummock looks amazing.
jackal /ˈdʒækl/ (noun) a wild animal like a dog, that eats the meat of animals that are already dead and lives in Africa and Asia Example: It is said that jackals eat animals that have died or been killed by others.
rainfall /ˈreɪnfɔːl/ (noun) the total amount of rain that falls in a particular area in a particular amount of time; an occasion when rain falls Example: The average annual rainfall in this region is 1000 millimetres.
spinifex /ˈspɪnɪfeks/ (noun) Example: I've heard that spinifex covers twenty per cent of the Australian continent.
aridity /əˈrɪdəti/ (noun) the fact of having little or no rain; the fact of being very dry Example: What is the aridity index of the region?
moisture /ˈmɔɪstʃər/ (noun) very small drops of water or other liquid that are present in the air, on a surface or in a substance Example: These plants need rich soil which retains moisture.
moist /mɔɪst/ (adjective) slightly wet Example: Keep the soil in the pot moist, but not too wet.
moisturize /ˈmɔɪstʃəraɪz/ (verb) to put a special cream on your skin to make it less dry Example: You should moisturize your skin every day.