Select Page

Archives: Dictionary


/ˈämnəˌvôr/ Noun, pl. omnivore 1. An animal which is able to consume both plants (like a herbivore) and meat (like a carnivore). ( 2. A polyphage (“many foods”) species that is a consumer of a variety of material as significant food sources in their natural diet. These foods may include plants, animals, algae and fungi. Omnivores often are opportunistic, general feeders with neither carnivore nor herbivore specializations for acquiring or processing food, and are capable of consuming and do consume both animal protein and vegetation. Many omnivores depend on a suitable mix of animal and plant food for long-term good health and reproduction. ( Word origin: From Latin omni + vorare “all, everything”, “to...

Read More


Noun 1. Formed of two bellies attached to intermediate tendon; origin, by inferior belly from upper border of scapula between superior angle and notch; insertion, by superior belly into hyoid bone; action, depresses hyoid; nerve supply, upper cervical spinal nerves through ansa cervicalis. ( 2. A muscle found in the neck, inferior to the hyoid bone (infrahyoid muscle). It is innervated by the C1 spinal nerve. ( 3. One of the infrahyoid muscles of the neck. It arises from the superior border of the scapula and suprascapular ligament. Passing superomedially, it becomes tendinous to form the intermediate tendon that passes through a fascial sling attached to the medial end of the clavicle. Continuing as a slender muscle, it ascends medially from the sling to insert into the inferior border of the hyoid bone. The part of the muscle lateral to the sling is the inferior belly. The part medially-sited is the superior belly. Omohyoid divides the posterior triangle of the neck into the supraclavicular triangle inferiorly and the occipital triangle superiorly. It is innervated by the ansa cervicalis from the cervical roots (C1-C3). ( Syn: musculus omohyoideus, omohyoid muscle Word origin: From Greek omos meaning shoulder, giving one of its attachments, and hyoid, giving the other attachment – the hyoid...

Read More


/ōˈpərkyələm/ Noun, pl. opercula 1. A covering flap or lidlike structure in plants and animals, such as a gill cover. ( 2. A lid or cover becoming detached at maturity by abscission, in eucalyptus (for example), a cap covering the bud and formed by fusion or cohesion of perianth parts. ( (Human Anatomy) ( 1. (In pregnancy), the cervical mucus plug that blocks the cervix of the uterus after conception. 2. (Brain), the part of the brain covering the insula. 3. (Dentistry), a small flap of tissue which may cover an erupting or partially erupted molar. (Animal Biology) ( 1. (Animal), a structure resembling a lid or a small door that opens and closes. 2. (Fish), a flap of the bony fish covering the gills. 3. (Gastropod), a lid on the shell of some gastropods. 4. (Bird), a structure which covers the nares of some birds. 5. (Bryozoa), a lid on the orifice of some bryozoans. 6. The anterior end of the fruit fly puparium, through which the adult fly emerges. (Botany) ( 1. Various lids and flaps pertaining to plants, algae and fungi. Word origin: From Latin operculum “cover, lid,” from operire “to cover,...

Read More


/äfˈTHalmik/  /äp-/ Adjective 1. Of or pertaining to the eyes and its diseases. (Google Dictionary) 2. Supplying or draining the eye or structures in the region of the eye. ( Syn: ocular Word origin: From Latin ophthalmicus, from Greek ophthalmikos “pertaining to the eye,” from ophthalmos...

Read More

Struggling in Biology?

Are You Premed?

Confused about the MCAT? Not sure how to prepare? This guide will show you how