Смысл: 
-a  -a[-ə]
 -a[-ə]
suff
<Í> образует форму мн. ч. лат. и греч. сущ. среднего рода, преим. научных терминов (особ. в области биологии) 
 1.  соотносится с -um, суффиксом ед. ч. лат. сущ.:  
  herbaria - гербарии 
  sera - сыворотки 
  phyla - (таксономические) типы 
  spectra - спектры 
  scrota - мошонки 
  incunabula - инкунабулы 
  media - средства, среды 
  symposia - симпозиумы 
  bacteria - бактерии 
 формы на -a часто имеют параллельные варианты на -ums:  
  aquaria, aquariums - аквариумы 
  premia, premiums - надбавки, премии 
  millenia, milleniums - тысячелетия 
 2.  соотносится с -on, суффиксом ед. ч. греч. сущ.:  
  criteria - критерии 
  phenomena - явления 
  noumena - ноумены 
  prolegomena - пролегомены 
  automata - автоматы 
  etyma - этимоны 
 3.  часто встречается в названиях высших биологических таксонов (не имеющих форм ед. ч.):  
  Arthropoda - членистоногие 
  Amphibia - земноводные 
  Coelenterata - кишечнополостные 
  Chiroptera - рукокрылые 
  Hydrozoa - гидроиды 
  Monotremata - однопроходные 
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clean slate, have a start with a Идиома
	a babe in arms
a baby, a child who is still wet behind the ears Dar was just a babe in arms when we emigrated to Canada.
a babe in the woods
"a defenseless person; a naive, young person" He's just a babe in the woods. He needs someone to protect him.
a bad taste in my mouth
a feeling that something is false or unfair, a feeling of ill will I left the meeting with a bad taste in my mouth. There was a lot of dishonesty in the room.
a bad time
a lot of teasing, a rough time The class gave him a bad time about his pink shorts.
a ball-park figure
"a number that is near the total; approximate figure" Fifty is a ball-park figure. It's close to our class size.
a bar fly
a person who often goes to bars or lounges Every evening Penny goes to Lucifer's. She's quite a bar fly.
a bar star
a girl who goes to bars to drink and find friends Lola was known as a bar star at Pinky's Lounge.
a bare-faced lie
a deliberate lie, a planned lie His statement to the police was false - a bare-faced lie.
a barnburner
an exciting game, a cliff-hanger When the Flames play the Oilers it's a barnburner - a great game.
a barrel of laughs
a lot of fun, a person who makes you laugh Let's invite Chang to our party. He's a barrel of laughs.
	
	
   
  
  
  			
			An clean slate, have a start with a idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with clean slate, have a start with a, allowing users to choose the best word for their specific context. 
			 Словарь похожих слов, Разные формулировки, Синонимы, Идиомы для Идиома clean slate, have a start with a