This is when the objects are deformed or stick together. Momentum is still conserved in these situations, but this time the objects do not escape the collision unharmed. And unlike elastic collisions, inelastic collisions do give off quite a bit of heat when the two objects come together.
From Wikipedia: Curtana, also Cortana or Courtain, is a latinized form of the Anglo-French curtein, from Latin curtus, 'shortened', used for a ceremonial type of sword. [...] Curtana was also, according to legend, the sword of Ogier the Dane; it bore the inscription My name is Cortana, of the same steel and temper as Joyeuse and Durendal..
Cortana - Computer Definition. Microsoft's virtual assistant for Windows desktops and smartphones. Introduced in 2014 for Windows Phone 8.1, Cortana was added to Windows 10 in 2015. Side-by-side voice queries showed that Cortana provided similar answers to Siri and Google Now in most cases. Because Skype is a Microsoft product, Cortana provides smooth activation of Skype video calls from voice commands.