browse words by letter
a b c d e f g h i j k l m n o p q r s t u v w x y z
cretaceous

more about cretaceous

cretaceous


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Cretaceous  \Cre*ta"ceous\,  a.  Also  Cretacic  \Cre*tac"ic\  (Geol.) 
  Of  pertaining  to  or  designating,  the  period  of  time 
  following  the  Jurassic  and  preceding  the  Eocene. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Cretaceous  \Cre*ta"ceous\  (kr[-e]*t[=a]"sh[u^]s),  a.  [L. 
  cretaceus,  fr  creta  chalk.  See  {Crayon}.] 
  Having  the  qualities  of  chalk;  abounding  with  chalk;  chalky; 
  as  cretaceous  rocks  and  formations.  See  {Chalk}. 
 
  {Cretaceous  acid},  an  old  name  for  carbonic  acid. 
 
  {Cretaceous  formation}  (Geol.),  the  series  of  strata  of 
  various  kinds,  including  beds  of  chalk,  green  sand,  etc., 
  formed  in  the  Cretaceous  period;  --  called  also  the  {chalk 
  formation}.  See  the  Diagram  under  {Geology}. 
 
  {Cretaceous  period}  (Geol.),  the  time  in  the  latter  part  of 
  the  Mesozoic  age  during  which  the  Cretaceous  formation  was 
  deposited. 
 
  From  WordNet  r  1.6  [wn]: 
 
  cretaceous 
  adj  1:  abounding  in  chalk 
  2:  of  or  relating  to  the  Cretaceous  geologic  era;  "cretaceous 
  rocks" 
  n  :  from  63  million  to  135  million  years  ago;  end  of  the  age  of 
  reptiles;  appearance  of  modern  insects  and  flowering 
  plants  [syn:  {Cretaceous},  {Cretaceous  period}] 




more about cretaceous