Plesiomorphous


Also found in: Medical.

Ple`si`o`mor´phous


a.1.Nearly alike in form.
References in periodicals archive ?
It is probable that the fourteen specialized sensilla (presented below) should be regarded as ones that have evolved from plesiomorphous peglike sensilla or/and cupola sensilla.
It is probable that these sensilla (i.e., ribbon-like sensilla) evolved from a more plesiomorphous peg-like sensillum or cupola-like sensilla of belostomatids.