partial veil

Từ điển Oxford Learners Wordfinder Dictionary

noun

membrane of the young sporophore of various mushrooms extending from the margin of the cap to the stem and is ruptured by growth;
represented in mature mushroom by an annulus around the stem and sometimes a cortina on the margin of the cap
• Hypernyms:
veil, velum
• Hyponyms:
cortina
• Part Meronyms:
annulus, skirt