sipunculid sipunculid /sɪˈpʌŋkjəlɪd/

noun

1. Small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut  ( peanut worm , sipunculid )
   small unsegmented marine worm that when disturbed retracts its anterior portion into the body giving the appearance of a peanut
   
   

 immortal immortal /ˌɪˈmɔrtəl/

adjective

1. () Not subject to death  ( immortal )
   not subject to death
     The mythological creatures were said to be immortal.
   The mythological creatures were said to be immortal.
   

noun

1. Any supernatural being worshipped as controlling some part of the world or some aspect of life or who is the personification of a force  ( immortal , deity , divinity , god )
   any supernatural being worshipped as controlling some part of the world or some aspect of life or who is the personification of a force
     The theologian devoted his life to the study of divinity and religious philosophy.
   The theologian devoted his life to the study of divinity and religious philosophy.
   
   
2. A person (such as an author) of enduring fame  ( immortal )
   a person (such as an author) of enduring fame
    Shakespeare is one of the immortals
   Shakespeare is one of the immortals
   

 black-legged tick black-legged tick /ˌblækˈlɛgɪd tɪk/

noun

1. Parasitic on mice of genus Peromyscus and bites humans; principal vector for Lyme disease in eastern United States (especially New England); northern form was for a time known as Ixodes dammini (deer tick)  ( black-legged tick , Ixodes scapularis )
   parasitic on mice of genus Peromyscus and bites humans; principal vector for Lyme disease in eastern United States (especially New England); northern form was for a time known as Ixodes dammini (deer tick)
   
   

 Dowding Dowding /ˈdaʊdɪŋ/

noun

1. British marshal of the RAF who commanded the British air defense forces that defeated the Luftwaffe during the Battle of Britain (1882-1970)  ( Baron Hugh Caswall Tremenheere Dowding , Dowding , Dowdy , Hugh Dowding )
   British marshal of the RAF who commanded the British air defense forces that defeated the Luftwaffe during the Battle of Britain (1882-1970)