-aceous
/ˈeɪʃəs/suffix
1
- Botany forming adjectives from family names ending in -aceae (such as ericaceous from Ericaceae)【植】［构成以-aceae结尾的科名的形容词, 如构成Ericaceae的形容词ericaceous］表示“…科的”。
2
- chiefly Biology & Geology forming adjectives describing similarity, especially in shape, texture, or colour【主生, 主地质】［构成描述相似性的形容词, 尤指形状、质地或颜色方面的相似性］表示“相似的”：
arenaceous
foliaceous
olivaceous.
词源
from Latin -aceus 'of the nature of' + -OUS.