| 释义 |
Definition of aril in English: arilnoun ˈarɪlˈerəl Botany An extra seed covering, typically coloured and hairy or fleshy, e.g. the red fleshy cup around a yew seed. 〔植〕假种皮 Example sentencesExamples - Seeds from the fruits were collected and viable seeds were distinguished by the colour of the aril (red, as opposed to dark brown for aborted seeds).
- The fruits, about 6 cm in length, are red or yellow, and, when ripe, split to expose three shining black seeds surrounded by fleshy arils.
- But the fruit's clusters of arils - or seeds surrounded by a juicy sac - are protected by sections of white, pithy membrane.
- What are commonly thought of as spices today are a collection of seeds, berries, flowers, fruits, kernels, roots, rhizomes, leaves, arils, barks and saps that are used in cooking and food preparation.
- The frail, brown shell is marked with longitudinal ridges, sometimes having a whitish aril (seed coat) fixed to one end.
Derivativesadjective Botany The migrant bird Tersina viridis utilizes arillate seeds of the Asian tree Michelia champaca. Example sentencesExamples - It was not possible to compare the removal and predation rates between arillate and non-arillate seeds due to the fast removal of the aril by invertebrates such as harvestmen, grasshoppers and especially ants.
- Experimental results with another bird-dispersed tree bearing arillate seeds, Clusia criuva, have further demonstrated that ant-induced seed movements can markedly affect seedling establishment in the Atlantic rainforest.
- In an arillate fruit, the aril is a fleshy outgrowth of the seed's own outer covering.
OriginMid 18th century: from modern Latin arillus, of unknown origin; perhaps related to medieval Latin arilli 'dried grape stones'. Definition of aril in US English: arilnounˈerəl Botany An extra seed-covering, typically colored and hairy or fleshy, e.g., the red fleshy cup around a yew seed. 〔植〕假种皮 Example sentencesExamples - But the fruit's clusters of arils - or seeds surrounded by a juicy sac - are protected by sections of white, pithy membrane.
- The frail, brown shell is marked with longitudinal ridges, sometimes having a whitish aril (seed coat) fixed to one end.
- What are commonly thought of as spices today are a collection of seeds, berries, flowers, fruits, kernels, roots, rhizomes, leaves, arils, barks and saps that are used in cooking and food preparation.
- The fruits, about 6 cm in length, are red or yellow, and, when ripe, split to expose three shining black seeds surrounded by fleshy arils.
- Seeds from the fruits were collected and viable seeds were distinguished by the colour of the aril (red, as opposed to dark brown for aborted seeds).
OriginMid 18th century: from modern Latin arillus, of unknown origin; perhaps related to medieval Latin arilli ‘dried grape stones’. |