Definition of ultrasaurus in English:

ultrasaurus

Syllabification: ul·tra·sau·rus
Pronunciation: /ˈəltrəˌsôrəs, ˌəltrəˈsôrəs
 
/

noun

A late Jurassic dinosaur related to the brachiosaurus, known from only a few bones but probably the tallest animal ever, and possibly the heaviest at up to 130 tons.
  • Genus Ultrasaurus, infraorder Sauropoda, order Saurischia
More example sentences
  • Many of the sauropods are closely related and perhaps you are correct in thinking ultrasaurus is just a massive brachiosuar but this is doubtful.
  • But scientists have taken a second look and surmise that ultrasaurus could be the remains of a huge brachiosaur and supersaurus mixed together.
  • When I was about 5 I had a dinosaur book and there was a page with a silhouette drawing of a man standing beside an ultrasaurus leg.

Origin

modern Latin, from Latin ultra 'beyond' + Greek sauros 'lizard'.

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Pronunciation: dɪˈmɒrəlʌɪz
verb
cause (someone) to lose confidence or hope