(simile) To sleep very well, especially peacefully

A small grand piano.

(simile) Extremely smooth.

hypotonia

(simile) extremely soft (not rough)

(computing, humorous) The tendency of computer users to think the system (software or usage paradigm) they originally started using is better than others.

A form of physical child abuse that occurs when a child is violently shaken, creating a whiplash-type motion that causes acceleration-deceleration injuries, often without external signs of trauma.

a type of bok choy with greener leafage, consumed mainly in the Eastern parts of China, notably Shanghai from which its alternative name, Shanghai bok choy, originates.

(chiefly US) A child of parents who belonged to a communist party (usually the United States Communist Party) or supported communist ideas and goals.

(medicine) cyanotic heart defects in a newborn baby