ellipsoid ellipsoid /ɪˈlɪpsɔɪd/

adjective

1. Having the nature or shape of an ellipsoid  ( ellipsoid , ellipsoidal , spheroidal )
   having the nature or shape of an ellipsoid
   

noun

1. () A surface whose plane sections are all ellipses or circles  ( ellipsoid )
   a surface whose plane sections are all ellipses or circles
    The Earth is an ellipsoid
   the Earth is an ellipsoid
   
   

 hula-hoop hula-hoop /ˈhuːləˌhuːp/

noun

1. Plaything consisting of a tubular plastic hoop for swinging around the hips  ( hula-hoop )
   plaything consisting of a tubular plastic hoop for swinging around the hips
    Sarah practiced with her hula-hoop every evening after school.
   Sarah practiced with her hula-hoop every evening after school.
   
   

 bell cot bell cot /bɛl kɒt/

noun

1. A small shelter for bells; has a gable or shed roof  ( bell cot , bell cote )
   a small shelter for bells; has a gable or shed roof
   
   

 quetzal quetzal /ˈkɛtsəl/

noun

1. Large trogon of Central America and South America having golden-green and scarlet plumage  ( quetzal , quetzal bird )
   large trogon of Central America and South America having golden-green and scarlet plumage
   
   
2. The basic unit of money in Guatemala; equal to 100 centavos  ( quetzal )
   the basic unit of money in Guatemala; equal to 100 centavos
    The colorful market in Guatemala sold items for quetzals.
   The colorful market in Guatemala sold items for quetzals.