収しゅう斂れん

noun, noun or participle which takes 'suru', transitive verb, intransitive verb

astringency; constriction; contraction

Medical/biological use for tissues or substances that tighten or shrink, e.g. astringent lotions or pupil constriction.

• この化け粧しょう水すいには肌はだを収しゅう斂れんさせる成せい分ぶんが含ふくまれている。

  This lotion contains ingredients that tighten the skin.

• 瞳どう孔こうが収しゅう斂れんする。

  The pupils constrict.

noun, noun or participle which takes 'suru', transitive verb, intransitive verb

collecting; gathering; summarizing

Used for bringing together opinions, data, taxes, etc. Sense 3 (tax collection) is a specific instance of this broader meaning.

• 会かい議ぎで出でた意い見けんを収しゅう斂れんして報ほう告こく書しょにまとめた。

  We collected the opinions from the meeting and compiled them into a report.

• 政せい府ふは新あらたな税ぜいの収しゅう斂れん方ほう法ほうを検けん討とうしている。

  The government is considering new methods of tax collection.

noun, noun or participle which takes 'suru', intransitive verb

convergence

Used in physics (light rays), mathematics (series, sequences), and biology (evolutionary convergence). Sense 4 is specifically for light; sense 5 is mathematical; sense 6 is biological.

See also: 収束

• 凸とつレンズで光ひかりを一いっ点てんに収しゅう斂れんさせる。

  A convex lens converges light to a single point.

• この数すう列れつは0に収しゅう斂れんする。

  This sequence converges to 0.

• 異ことなる系けい統とうの生せい物ぶつが似にた形けい質しつを持もつことを収しゅう斂れん進しん化かという。

  The phenomenon where organisms of different lineages develop similar traits is called convergent evolution.