| ceterach | (n) small genus of Old World ferns; superseded in some classification systems which place plants of this genus in e.g. genera Asplenium and Pleurosorus, Syn. genus Ceterach |
| scale fern | (n) small European fern with chaffy leathery fronds, Syn. scaly fern, Ceterach officinarum, Asplenium ceterach |
| Ceterach | n. [ F. cétérac, fr. Ar. shetrak. ] (Bot.) A species of fern with fronds (Asplenium Ceterach). [ 1913 Webster ] |