A child first labels the household pet cat as a "cat" and then generalizes this label to other animals that look like it.

孩子先把家养的宠物猫称为“猫”，然后把这个称呼扩大到其他看起来像猫的动物。

《柯林斯英汉双解大词典》

I have a lovely pet cat.

我有一只可爱的宠物猫。

youdao

My pet cat disappeared.

我的宠物猫失踪了。

youdao

Studies using imaging techniques like CAT scans, PET, and fMRI, illustrate that different parts of the brain are active during different parts of mental life.

应用电脑断层扫描,正电子发射断层扫描,以及功能性核磁共振成像,等成像技术的研究,表明不同的心理活动,会导致不同大脑区域的激活

耶鲁公开课 - 心理学导论课程节选

Typically, these are recent imaging methods like CAT scan and PET scan and fMRI which, as I said before, show parts of your brain at work.

通常是应用现代的成像技术来进行研究,比如电脑断层扫描,正电子发射断层扫描技术,以及功能性核磁共振成像,正如我之前所说,这些技术可以让你看到大脑的活动区域

耶鲁公开课 - 心理学导论课程节选

The Scottish SPCA has appealed for information after a lost blind pet cat was found bumping into things in Aberdeen.

BBC: Appeal over blind arthritic cat found in Aberdeen

It's also entirely possible that he just has a pet cat.

CNN: Apparently This Matters: Selling a haunted mirror

One possible explanation for the sighting was provided by Ginny Murphy, of St Osyth, who claimed the animal spotted was her pet cat, called Teddy Bear.

BBC: Image of 'lion' in St Osyth