laptop

lap‧top /ˈlæptɒp $ -tɑːp/ BrE AmE (also ˌlaptop ˈcomputer) noun [countable]
a small computer that you can carry with you ⇨ desktop

Oxford Advanced Learner's Dictionary

laptop

lap·top [laptop laptops] [ˈlæptɒp] [ˈlæptɑːp] noun

a small computer that can work with a battery and be easily carried

Syn: notebook

Cambridge Advanced Learner's Dictionary

Cambridge Advanced Learner's Dictionary - 4th Edition

laptop / ˈlæp.tɒp / / -tɑːp / noun [ C ] ( also ˌ laptop com ˈ puter )

laptop

A2 a computer that is small enough to be carried around easily and is flat when closed:

A laptop would be really useful for when I'm working on the train.

Collins COBUILD Advanced Learner’s English Dictionary

laptop

/læptɒp/
(laptops)

A laptop or a laptop computer is a small portable computer.
She used to work at her laptop until four in the morning.

N-COUNT

Merriam-Webster's Advanced Learner's Dictionary

Merriam-Webster's Advanced Learner's Dictionary:

laptop

lap·top /ˈlæpˌtɑːp/ noun, pl -tops [count] : a small computer that is designed to be easily carried
• He uses a laptop for business when he travels.
- called also laptop computer,
- compare desktop