系けい統とう

noun

system; network; line of organization

Refers to a connected system or organized set of lines, channels, or components, as in 電気系統, 交通系統, or 連絡系統.

• 電でん気き系けい統とうに異い常じょうがあるかもしれない。

  There may be a fault in the electrical system.

• 社しゃ内ないの連れん絡らく系けい統とうを見み直なおした。

  We reviewed the internal lines of communication.

noun

lineage; ancestry; family line

Used for descent or a line of ancestry; often appears with expressions like 系統を引く, meaning to come from or inherit a particular line.

• 彼かれは古ふるい武ぶ家けの系けい統とうを引ひいている。

  He descends from an old samurai family line.

noun

group; family; school; affiliation

Classifies things or people into a related family, category, party, or school of thought. Common with colors, languages, academic traditions, political tendencies, and similar groupings.

• 同おなじ系けい統とうの色いろでまとめると、部屋へやに統とう一いつ感かんが出でる。

  If you use colors from the same family, the room will feel unified.

• この思し想そうは自じ由ゆう主しゅ義ぎの系けい統とうに属ぞくする。

  This idea belongs to the liberal school of thought.

noun

evolutionary relationship; phylogenetic closeness

Biological use for how closely organisms or species are related in evolutionary lineage.

• この二ふたつの種しゅは系けい統とうが近ちかい。

  These two species are closely related evolutionarily.

noun

genetic lineage; strain; population with a common ancestor

Technical genetics and microbiology use for a strain or population sharing a common ancestor, such as a mouse strain, bacterial strain, or viral lineage.

• 同おなじ系けい統とうのマウスを使つかって実じっ験けんした。

  We conducted the experiment using mice of the same strain.

• この菌きんの系けい統とうを調しらべるためにDNAを解かい析せきした。

  We analyzed the DNA to examine the strain of this bacterium.