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There are 8 words containing IOSTR
| BIOSTROME | • biostrome n. (Geology) A horizontally bedded stratum of fossilized remains of sedentary organisms. • BIOSTROME n. a rock layer consisting of a deposit of organic material such as fossils. |
| BIOSTROMES | • biostromes n. Plural of biostrome. • BIOSTROME n. a rock layer consisting of a deposit of organic material such as fossils. |
| PERIOSTRACUM | • periostracum n. (Malacology) The proteinaceous outer sheath of many molluscan shells. • PERIOSTRACUM n. the horny outer layer of a mollusc's shell. |
| PERIOSTRACUMS | • PERIOSTRACUM n. the horny outer layer of a mollusc's shell. |
| ALLOIOSTROPHOS | • ALLOIOSTROPHOS adj. irregularly divided, not in alternate strophe and antistrophe. |
| RADIOSTRONTIUM | • radiostrontium n. Any radioactive isotope of strontium, especially 9038Sr. • RADIOSTRONTIUM n. a radioactive isotope of strontium, esp. strontium-90. |
| BIOSTRATIGRAPHY | • biostratigraphy n. (Biology, geology) The study of the stratigraphic distribution of fossils. • BIOSTRATIGRAPHY n. the determination of age, etc., of sedimentary strata from fossils which they contain. |
| RADIOSTRONTIUMS | • radiostrontiums n. Plural of radiostrontium. • RADIOSTRONTIUM n. a radioactive isotope of strontium, esp. strontium-90. |
Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the 1Word.ws and WikWik.org.
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See this list for:
- English Wiktionary: 37 words
- Scrabble in French: no word
- Scrabble in Spanish: 138 words
- Scrabble in Italian: 120 words
- Scrabble in German: no word
- Scrabble in Romanian: 9 words
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