Go to 'thermo-' entry Go to 'dino-' entry Go to 'chondro-' entry Go to 'aero-' entry Go to '-logy' entry Go to 'thaumato-' entry Go to 'nano-' entry Go to '-sophy' entry Go to 'bucco-' entry Go to '-ism' entry Go to '-lysis' entry Go to 'galacto-' entry Go to '-anthropy' entry Go to 'pneumo-' entry Go to '-ploitation' entry Go to '-lithic' entry Go to '-sepalous' entry Go to 'onco-' entry Go to '-parous' entry Go to 'dermato-' entry Go to 'multi-' entry Go to 'dodeca-' entry Go to '-zoon' entry Go to 'vermi-' entry Go to 'crystallo-' entry Go to 'biblio-' entry Go to 'eco-' entry Go to 'juxta-' entry Go to 'facio-' entry
Affixes: the building blocks of English
Affixes: the building blocks of English

intra-

On the inside; within.

[Latin intra, inside.]

This form is widely used in scientific fields, especially biology and medicine: intracellular, located within a cell or cells; intramolecular, existing or taking place within a molecule; intramuscular, situated or taking place within, or administered into, a muscle; intrauterine, within the uterus; intravenous, existing or taking place within, or administered into, a vein or veins. Other examples are intramural, situated or done within the walls of a building, or one institution; intrapreneur, a manager within a company who promotes innovative product development and marketing (from entrepreneur). The opposite is extra-.

However, intransigent contains Latin in-, not, plus transigere, come to an understanding; intractable similarly derives from Latin tractabilis, from tractare, to handle.

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