decussate
/dɪˈkʌseɪt/ adjective, verb
Forms decussates decussating decussated
- adjective Crossed; intersected; resembling a letter X.
- adjective (zoology) Having anatomical structures or markings crossing each other, typically in an X shape or at right angles.
- adjective (botany) Having opposite leaves arranged alternately at right angles.
- adjective (rhetoric) Consisting of two rising and two falling clauses, placed in alternate opposition to each other.
- verb To form an X or to cross or intersect.
Synonyms
Etymology
The adjective is first attested in 1825, the verb in 1658. Borrowed from Latin decussātus, perfect passive participle of decussō (“to divide crosswise, arrange crosswise or mark with a cross”) (see -ate (adjective-forming suffix) and -ate (verb-forming suffix)), from decussis (“a coin worth ten asses; a cross sign (from the cross shape of the Roman numeral for ten carved on the coins)”), from decem (“ten”) + as (“a Roman coin”).
Webster’s 1913
- verb To cross at an acute angle; to cut or divide in the form of X; to intersect; --said of lines in geometrical figures, rays of light, nerves, etc.
- adjective Crossed; intersected.
- adjective Growing in pairs, each of which is at right angles to the next pair above or below; as, decussated leaves or branches.
Etymology [L. decussatus, p. p. of decussare to cross like an X, fr. decussis (orig. equiv. to decem asses) the number ten, which the Romans represented by X.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “decussate”, CC BY-SA 4.0. Details