Orthorrhapha

plural noun

Or·​thor·​rha·​pha

ȯ(r)ˈthȯrəfə

: a large suborder of Diptera that usually includes the Nematocera and many of the Brachycera but is sometimes restricted to the more primitive families of Brachycera and that is distinguished by a pupal case opening by a T-shaped cleft behind the head or by a transverse slit between the seventh and eighth abdominal segments

orthorrhaphous

(ˈ)⸗¦⸗⸗fəs

adjective

Word History

Etymology

New Latin, from orth- + -rrhapha (from Greek rhaphē seam, from rhaptein to sew together)

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now