cathetaladj.

/ˈkaθɪtəl/

Forms: Also kathetal.

Etymology: < cathetus n. + -al suffix¹.

Pertaining to a cathetus; perpendicular.

ΘΚΠ

the world > space > relative position > position at right angles to something > [adjective]

perpendicularc1475

square?a1560

direct1563

rectangular1646

upright1678

orthogonal1694

normal1704

right-angled1802

cathetal1874

1874 tr. E. Lommel Nature of Light (ed. 4) 64 The rays which fall perpendicularly upon the kathetal surface pass without deflection through the glass.

1880 Webster's Dict. Suppl.

This entry has not yet been fully updated (first published 1889; most recently modified version published online December 2020).

单词	cathetal
释义	cathetaladj. /ˈkaθɪtəl/ Forms: Also kathetal. Etymology: < cathetus n. + -al suffix¹. Pertaining to a cathetus; perpendicular. ΘΚΠ the world > space > relative position > position at right angles to something > [adjective] perpendicularc1475 square?a1560 direct1563 rectangular1646 upright1678 orthogonal1694 normal1704 right-angled1802 cathetal1874 1874 tr. E. Lommel Nature of Light (ed. 4) 64 The rays which fall perpendicularly upon the kathetal surface pass without deflection through the glass. 1880 Webster's Dict. Suppl. This entry has not yet been fully updated (first published 1889; most recently modified version published online December 2020). < adj.1874
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