underfilter

名词 n. 动词 v.

英文释义

名词 n.
  1. A morphological filter (idempotent operator) whose image is a subset of the domain.
    — It is clear that overfilters and underfilters are dual in the sense of the duality principle.
  2. A filter that is positioned beneath something.
    — The paving downstream consisted of 18x18x8-inch blocks laid on edge over a brick base which in turn was underlain with a gravel or brick chip filter. Since there was some controversy as to whether an underfilter was necessary, the first test was made with the filter omited.^([sic])
动词 v.
  1. To filter insufficiently.
    — It is not possible to overfilter your tank but marine aquaria are frequently underfiltered.

词形变化

underfilters plural underfilters present,singular,third-person underfiltering participle,present underfiltered participle,past underfiltered past

词汇关系

并列词
overfilter

词源

词源 1
From under- + filter.
词源 2
From under- + filter.
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