decussate[dē kus′āt′, dek′ə sāt′; for adj., usually di kus′it]
intransitive verbdecussated, decussating
Origin of decussate; from Classical Latin decussatus, past participle of decussare, to cross in the form of an ; from decussis, the figure ten (X) ; from decem, ten
- forming an ; decussated
- Bot. arranged in pairs growing at right angles to those above and below: said of leaves or branches
tr. & intr.v.de·cus·sat·ed, de·cus·sat·ing, de·cus·sates
- Intersected or crossed in the form of an X.
- Botany Arranged on a stem in opposite pairs, at right angles to those above or below: decussate leaves.
Origin of decussateLatin decussāre, decussāt-, from decussis, the number ten, intersection of two lines (from the Romans' use of X for the numeral 10), a ten-as coin : decem, ten; see dek&mlowring; in Indo-European roots + assis, as (coin).
(comparative more decussate, superlative most decussate)
- Crossed; intersected; resembling a letter X.
- (botany) Having opposite leaves arranged alternately at right angles.
- (rhetoric) Consisting of two rising and two falling clauses, placed in alternate opposition to each other.
- a decussated period
(third-person singular simple present decussates, present participle decussating, simple past and past participle decussated)