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semi-quadrangle
ΚΠ
1789 T. Taylor tr. Proclus Philos. & Math. Comm. II. 32 That which has the vertical angle double of each at the base, as a semiquadrangle.
semi-quadrangle
semi-quadrangle n. 
/ˈsɛmiˌkwɑˌdræŋɡ(ə)l/
Brit. /ˈsɛmɪˌkwɒdraŋɡl/
, /ˈsɛmɪˌkwɒdraŋɡl/U.S. /ˈsɛˌmaɪˌkwɑˌdræŋɡ(ə)l/
, /ˈsɛˌmaɪˌkwɑˌdræŋɡ(ə)l//ˈsɛmiˌkwɑˌdræŋɡ(ə)l/ΚΠ
1789 T. Taylor tr. Proclus Philos. & Math. Comm. II. 32 That which has the vertical angle double of each at the base, as a semiquadrangle.
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