Summer squash and Yellow squash

Summer squash noun - Any of various usually bushy plants producing fruit that is eaten while immature and before the rind or seeds harden.

Yellow squash and summer squash are semantically related. In some cases you can replace phrase "Yellow squash" with "Summer squash", this phrases are similar.

Yellow squash noun - Any of various squash plants grown for their yellow fruits with somewhat elongated necks.

Summer squash and yellow squash are semantically related. You can use "Summer squash" instead a noun phrase "Yellow squash".