層そう

noun, noun, used as a suffix

layer; stratum; seam; bed

Physical or geological layer; also used for thin seams or beds of material.

• 地ち層そうを調しらべると、過か去この環かん境きょうがわかる。

  By examining geological strata, we can learn about past environments.

• ケーキはスポンジとクリームの層そうでできている。

  The cake is made of layers of sponge and cream.

noun, noun, used as a suffix

class; stratum; bracket; group

Social or abstract layer, such as income bracket, age group, or social class.

• この政せい策さくは中ちゅう間かん所しょ得とく層そうを支し援えんするものだ。

  This policy supports the middle-income bracket.

• 若じゃく年ねん層そうの投とう票ひょう率りつが低ひくい。

  Voter turnout among the younger age group is low.

noun, noun, used as a suffix

sheaf

Mathematics term for a sheaf; a technical concept in topology and algebraic geometry.

• 層そうの理り論ろんは代だい数すう幾き何か学がくで重じゅう要ような役やく割わりを果はたす。

  Sheaf theory plays an important role in algebraic geometry.

counter

counter for stories (of a building)

Used as a counter for floors or storeys of a building; often in compounds like 二層 (two-storey).

• このビルは五ご層そう建だてです。

  This building is five storeys tall.