матем.; техн. хорда
хорда касания
хорда профиля
хорда сферы
матем. хордаль
геом. chord;subtense
хорда дуги — span.
"Honor is not the exclusive property of any political party." Herbert Hoover
"Hitch your wagon to a star." Ralph Waldo Emerson
"If fear is cultivated it will become stronger, if faith is cultivated it will achieve mastery." John Paul Jones
"Ambition is but avarice on stilts, and masked." Walter Savage Landor