Zero entry pools are pools which have a gradual ramped entry so that someone can walk or roll into them without having to go down any steps.
The zero entry pools have a water wheelchair available, but do not leave it out when not in use, so you will need to ask for one if you need it.
Heres the whole list of zero entry pools:
Disney's Animal Kingdom Lodge
zero-depth-entry Uzima Springs Pool with a waterside (zero entry is at top of picture)
For DVC guests; Samawati Springs Pool at Kidani villager - zero entry with 128 foot slide and two whirlpool spas
Disney's Caribbean Beach Resort
Large Spanish fort-themed zero entry pool with a waterslide, waterfalls and water cannons, a wading pool and a whirlpool
Disney's Grand Floridian Resort & Spa
Courtyard Pool, zero-depth-entry Beach Pool with a waterfall
Disney's Polynesian Resort
Zero-depth-entry Nanea Volcano Pool with a waterfall and a waterside
Disney's Saratoga Springs Resort & Spa
High Rock Spring area with a waterfall, a zero-depth-entry freeform pool and a play area with a waterside. Picture shows the toddler slide and zero entry area to the right of the slide.
I dont know the name of the other pool at Saratoga, but it is also zero entry.
Bay Lake Tower
Bay Cove Pool, a zero-entry pool, exclusively for Guests of Bay Lake Tower. The main feature of Bay Cove Pool is a 20-foot high and 148-foot long water slide. There is also a separate ADA approved accessible slide.
Zero entry area is at top of picture (shows someone lying in the area)
You will notice that
Stormalong Bay is not on this list, although many people call it a zero entry pool. That is because it doesnt actually have a zero entry area other than a zero entry kids area. It is sort of in the main pool, but you cant get into the main pool water from the zero entry kiddie pool/play area.