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One half
- Hemi-: Prefix meaning one half, as in hemiparesis, hemiplegia, and hemithorax. From the Greek hemisus meaning half and equivalent to the Latin semi-.
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Appendix A: Word Parts and What They Mean. Here is a list of word parts. They may be at the beginning, in the middle, or at the end of a medical word. General Words. Body Parts and Disorders. Positions and Directions. Numbers and Amounts.
This is a list of roots, suffixes, and prefixes used in medical terminology, their meanings, and their etymologies. Most of them are combining forms in Neo-Latin and hence international scientific vocabulary. There are a few general rules about how they combine.
AffixMeaningOrigin Language And EtymologyExample (s)a-, an-not, without ( alpha privative )Greek ἀ-/ἀν- ( a-/an- ), not, ...analgesic, apathy, anencephalyab-from; away fromLatinabduction, abdomenabdomin-of or relating to the abdomenLatin abdōmen, abdomen, fat around the ...abdomen, abdominal-acpertaining to; one afflicted withGreek -ακός ( -akós )cardiac, celiacJul 14, 2023 · A drug’s half-life is an estimation of the time it takes for the drug’s initial concentration in the body to decrease by half. For example, if a drug’s half-life is 4 hours and the initial concentration is 100 mg, it’s estimated that 50 mg will remain after 4 hours.
Search medical terms and abbreviations with the most up-to-date and comprehensive medical dictionary from the reference experts at Merriam-Webster. Master today's medical vocabulary. Authoritative pronunciations.
- Basic Term Structure
- Word Roots
- Prefixes
- Suffixes
Medical terms are composed of these standard word parts: 1. Prefix:When included, the prefix appears at the beginning of a medical term and usually indicates a location, direction, type, quality, or quantity. 2. Root:The root gives a term its essential meaning. Nearly all medical terms contain at least one root. When a prefix is absent, the term be...
A root is the foundational element of any medical term. Roots often indicate a body part or system. Common word roots: Compound Words A medical word may include multiple roots. This frequently occurs when referencing more than one body part or system. For example, cardio-pulmo-nary means pertaining to the heart and lungs; gastro-entero-logy means t...
A prefix modifies the meaning of the word root. It may indicate a location, type, quality, body category, or quantity. Prefixes are optional and do not appear in all medical terms. Common prefixes:
Medical terms always end with a suffix.3The suffix usually indicates a specialty, test, procedure, function, condition/disorder, or status. For example, “itis” means inflammation and “ectomy” means removal. Alternatively, the suffix may simply make the word a noun or adjective. For example, the endings -a, -e, -um, and -us are commonly used to crea...
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Mentally dividing a medical term into its word parts will help you to figure out the meaning of the unfamiliar term. But before you can deconstruct medical terms, you need to know a few things about how they’re constructed.
The meaning of HALVE is to divide into two equal parts. How to use halve in a sentence.
