rudiment

[ roo-duh-muh nt ]
/ ˈru də mənt /

noun

Usually rudiments.
  1. the elements or first principles of a subject: the rudiments of grammar.
  2. a mere beginning, first slight appearance, or undeveloped or imperfect form of something: the rudiments of a plan.
Biology. an organ or part incompletely developed in size or structure, as one in an embryonic stage, one arrested in growth, or one with no functional activity, as a vestige.

Origin of rudiment

1540–50; < Latin rudīmentum early training, first experience, initial stage, equivalent to rudi(s) unformed, rough (see rude) + -mentum -ment ( -ī- for -i- after verbal derivatives)

Example sentences from the Web for rudiment

British Dictionary definitions for rudiment

rudiment
/ (ˈruːdɪmənt) /

noun

(often plural) the first principles or elementary stages of a subject
(often plural) a partially developed version of something
biology an organ or part in its earliest recognizable form, esp one in an embryonic or vestigial state

Word Origin for rudiment

C16: from Latin rudīmentum a beginning, from rudis unformed; see rude

Medical definitions for rudiment

rudiment
[ rōōdə-mənt ]

n.

An imperfectly or incompletely developed organ or part.
Something in an incipient or undeveloped form. Often used in the plural.