oncologist oncologist /ɑːŋˈkɑːlədʒɪst/

noun

1. A specialist in oncology  ( oncologist )
   a specialist in oncology
    After her diagnosis, she was referred to a leading oncologist for treatment.
   After her diagnosis, she was referred to a leading oncologist for treatment.
   
   

 infant infant /ˈɪnfənt/

noun

1. () A very young child (birth to 1 year) who has not yet begun to walk or talk  ( bundle of joy , infant , babe , baby )
   a very young child (birth to 1 year) who has not yet begun to walk or talk
    The baby began to cry again
   the baby began to cry again
    She held the baby in her arms
   she held the baby in her arms
    It sounds simple, but when you have your own baby it is all so different
   it sounds simple, but when you have your own baby it is all so different
   
   

 sneeze sneeze /ˈsniːz/

noun

1. A symptom consisting of the involuntary expulsion of air from the nose  ( sneeze , sneezing , sternutation )
   a symptom consisting of the involuntary expulsion of air from the nose
    I always sneeze twice in a row when I'm allergic to something
   I always sneeze twice in a row when I'm allergic to something
   
   

verb

1. Exhale spasmodically, as when an irritant entered one's nose  ( sneeze )
   exhale spasmodically, as when an irritant entered one's nose
    Pepper makes me sneeze
   Pepper makes me sneeze
   

 pearly nautilus pearly nautilus /ˈpɜːrliː ˈnɔːtɪləs/

noun

1. Cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions  ( chambered nautilus , nautilus , pearly nautilus )
   cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions