| barrier |
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| N | [barrera] | barrier, barriers |
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| ~ N | ~ conditions | ~ formation | ~ function | ~ island | ~ molecules |
| It acquires its barrier function in epithelia. | Mice were caged under barrier conditions. |
| N ~ | protein ~, species ~ |
| Several inferences have been made about the nature of species barriers. |
| Adj ~ | chemical ~ | mechanical ~ | molecular ~ | physical ~ | psychological ~ | reproductive ~ | topological ~ |
| Epithelial cells form a mechanical barrier. |
| V ~ | act as (a) ~ , serve as (a) ~ | use as (a) ~ |
Other structures serve as a barrier to fungal penetration. | They are used as barriers to cell movement. |
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| > Los verbos con los que aparece en este contexto van siempre acompañados de la preposición "as" (a). |
| ~ Prep | ~ between | ~ to |
| It acts as a barrier between the system and the environment. | The cells provide a barrier to microbial invasion. |