Tomatoes
Seedless means a fruit or a vegetable has no seeds.
A watermelon isn't a vegetable because it has seeds in it. But i don't know why seedless watermelons aren't a vegetable.
A seedless plant would be eg a vegetable eg carrot-lettuce but these plants have roots, all fruits and flowers have seeds but vegetables do not.
Leafless
The vegetable that has no leaves is the root vegetable, specifically the carrot. Carrots grow underground and consist primarily of a thickened taproot, which is the edible portion. Other examples of leafless vegetables include turnips and radishes, which also develop primarily from their roots.
A Yellow flower is seedless, But have little pods which aren't considered as seeds.
There are many seedless fruits in the world; such as the banana, coconut, persimmon, cashew, jambu air (in bahasa malaysia), kiwiberry and the kiwi fruit.
Yes, "leafless" is an adjective that describes something that lacks leaves.
English cucumbers are a popular seedless variety of cucumber. They are longer and slender with thin skin, and the seeds are almost non-existent. Additionally, English peas (also known as garden peas) are another seedless vegetable variety commonly found in English cuisine.
It's called a vegetable because it was once a cucumber, which is a vegetable.
Technically it is considered a grain not a vegetable
Garlic is considered a vegetable because it is a plant that is grown for its edible parts, which are the bulbs.