Aril and Tegument

Aril noun - Fleshy and usually brightly colored cover of some seeds that develops from the ovule stalk and partially or entirely envelopes the seed.

Tegument and aril are semantically related. In some cases you can use "Tegument" instead a noun "Aril".

Tegument noun - A natural protective body covering and site of the sense of touch.

Aril and tegument are semantically related. Sometimes you can use "Aril" instead a noun "Tegument".