Interra´mal, a. Between the forks or rami of the lower jaw.
Interrupt´ed, a. Discontinuous; broken up.
Interscapil´ium or Interscap´ulum, n. Region of the upper back between the shoulders. (58.)
Interscap´ular, a. Between the shoulders. The plural, interscapulars or interscapularies, is used to denote the feathers of such region collectively.
Invag´inate, a. Sheathed.
Inver´tebrate, a. or n. Having no backbone; an animal without a backbone. Opposed to vertebrate.
I´rian, Irid´ian, a. Pertaining to the iris.
Irides´cent, a. Glittering with many colors, which change in different lights.
I´ris, n. Circular muscular curtain suspended perpendicularly in the eye between the aqueous and vitreous chambers, having a hole in the centre (the pupil). It is of all colors in birds.
Ischiat´ic, a. Pertaining to the ischium.