subdwarf
/ˈsʌbdwɔːf/noun
1A tree, especially a cultivar, that is smaller than a size regarded as dwarf. Compare dwarf. rare.
2 Astronomy. A star which lies just below the main sequence on the Hertzsprung–Russell diagram, being less luminous than main sequence stars of the same temperature or spectral type.
Origin
Early 20th century; earliest use found in Bulletin Natal Department Agriculture. From sub- + dwarf.
- (as) plain as a pikestaff
- as plain as the nose on someone's face
- (as) pleased as Punch
- as pleased (or proud) as Punch
- (as) poor as a church mouse
- asportation
- a sprat to catch a mackerel
- asprawl
- (as) pretty as a picture
- asp viper
- a square deal
- a square peg in a round hole
- (as) quick as a flash
- (as) quiet as a mouse (or lamb)
- (as) quiet as the grave
- asquint
- Asquith, Herbert Henry
- as rare (or scarce) as hen's teeth
- (as) red as a beetroot (beet)
- as regards
- as regular as clockwork
- (as) right as a trivet
- (as) right as rain
- (as) rough as guts
- ass