pachycephalosaurus
[ păk′ĭ-sĕf′ə-lə-sôr′əs ]
Save This Word!
A large herbivorous dinosaur of the genus Pachycephalosaurus of the late Cretaceous Period. It grew to about 7.6 m (25 ft) long and had a domed skull up to 25.4 cm (10 inches) thick that was lined with small bumps and spikes. The thick skull may have been used for head-butting during mating displays.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?
Words nearby pachycephalosaurus
Pachmann, Pachomius, pachouli, pachuca, pachuco, pachycephalosaurus, pachyderm, pachydermatous, pachymeningitis, pachysandra, pachytene
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.