Word of the Day – Perpendicular

By March 14, 2018Word of the Day
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Perpendicular (adj)


At an angle of 90° to a given line, plane, or surface or to the ground.

Late Middle English (as an adverb meaning ‘at right angles’): via Old French from Latin perpendicularis, from perpendiculum ‘plumb line’, from per- ‘through’ + pendere ‘to hang’.

Example sentences

“The lamp post sat perpendicular to the street.”

Word of the Day – Zeitgeber

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Zeitgaber (noun)


A rhythmically occurring natural phenomenon which acts as a cue in the regulation of the body’s circadian rhythms.

1950s: from German Zeitgeber, from Zeit ‘time’ + Geber ‘giver’.

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