Also found in: Medical.
Having the nature of; resembling: gaseous.
[Middle English, from Old French -eux, -eus (from Latin -ōsus) and from Latin -eus.]
suffix forming adjectives
relating to or having the nature of: gaseous. Compare -ious
[from Latin -eus]
an adjectival suffix with the meanings “composed of,” “resembling, having the nature of,” occurring in loanwords from Latin (igneous; vitreous); also, as a semantically neutral suffix, found on adjectives of diverse origin, sometimes with corresponding nouns ending in -ty2 (beauteous; courteous; homogeneous).
[< Latin -eus; see -ous]