Defn: Rudimentary. Addison.

RUDIMENTARY
Ru`di*men"ta*ry, a. Etym: [Cf. F. rudimentaire.]

1. Of or pertaining to rudiments; consisting in first principles; elementary; initial; as, rudimental essays.

2. (Biol.)

Defn: Very imperfectly developed; in an early stage of development; embryonic.

RUDISH
Rud"ish, a.

Defn: Somewhat rude. Foote.

RUDISTES
Ru*dis"tes, n. pl. Etym: [NL., fr. L. rudis rough.] (Paleon.)

Defn: An extinct order or suborder of bivalve mollusks characteristic of the Cretaceous period; — called also Rudista. See Illust. under Hippurite.

RUDITY Ru"di*ty, n. Etym: [L. ruditas ignorance, fr. rudis rude, illiterate.]