boundary-defining taxon

cultivar taxon

new taxon

taxon

taxon range zone

taxon system

monophyletic taxon

tribal taxon

13C-NMR assignment

1H resonance assignment

2D assignment

2-D assignment

Abnormal layer assignment

absent assignment

absent assignment problem

absent assignment problem of least cost subjecting

absent assignment problem of the shortest time lim

absolute assignment

accent assignment

action of the assignment