Definition of "decussate" in English

adjective

1. Crossed; intersected; resembling a letter X.

2. (zoology) Having anatomical structures or markings crossing each other, typically in an X shape or at right angles.

3. (botany) Having opposite leaves arranged alternately at right angles.

4. (rhetoric) Consisting of two rising and two falling clauses, placed in alternate opposition to each other.

   • a decussated period

verb

1. To form an X or to cross or intersect.