semimicro-comb. formadj.

(As combining form, sense 1)Stress is usually determined by a subsequent element and vowels may be reduced accordingly. (As adjective, sense 2) Brit.

/ˌsɛmɪˈmʌɪkrəʊ/, U.S.

/ˌsɛmiˈmaɪkroʊ/,

/ˌsɛmaɪˈmaɪkroʊ/

Etymology: < semi- prefix 1a(a) + micro- comb. form 2a

Chemistry.

1. Formative element denoting a scale of quantitative analysis between micro-scale and macro-scale (commonly 0·01–0·1 gramme).

semimicroanalysis n.

Brit.

/sɛmɪˌmʌɪkrəʊəˈnalᵻsɪs/

/ˌsɛmɪmʌɪkrəʊəˈnalᵻsɪs/

U.S.

/ˌsɛmiˌmaɪkroʊəˈnæləsəs/

/ˌsɛmaɪˌmaɪkroʊəˈnæləsəs/

ΚΠ

1951 A. I. Vogel Text-bk. Quantitative Inorg. Anal. (ed. 2) xi. 814 Semi-micro-analysis is concerned with the manipulation of 10–100 mg. of material, whilst micro~analysis deals with 1–10 mg. of material.

semimicro-analytical adj.

Brit.

/sɛmɪˌmʌɪkrəʊanəˈlɪtᵻkl/

/ˌsɛmɪmʌɪkrəʊanəˈlɪtᵻkl/

U.S.

/ˌsɛmiˌmaɪkroʊˌænəˈlɪdᵻk(ə)l/

/ˌsɛmaɪˌmaɪkroʊˌænəˈlɪdᵻk(ə)l/

ΚΠ

1938 Jrnl. Soc. Chem. Industry Dec. 464/1 (heading) The determination of free and saline ammonia using a semi-microanalytical method.

semimicro-determination n.

Brit.

/sɛmɪˌmʌɪkrə(ʊ)dᵻtəːmᵻˈneɪʃn/

/ˌsɛmɪmʌɪkrə(ʊ)dᵻtəːmᵻˈneɪʃn/

U.S.

/ˌsɛmiˌmaɪkroʊdəˌtərməˈneɪʃ(ə)n/

/ˌsɛmaɪˌmaɪkroʊdəˌtərməˈneɪʃ(ə)n/

ΚΠ

1937 Industr. & Engin. Chem. (Analyt. ed.) 15 June 296 (heading) Micro-, semimicro-, and macro-determination of halogens in organic compounds.

semimicro-method n.

Brit.

/ˌsɛmɪˈmʌɪkrə(ʊ)ˌmɛθəd/

U.S.

/ˌsɛmiˈmaɪkroʊˌmɛθəd/

/ˌsɛmaɪˈmaɪkroʊˌmɛθəd/

ΚΠ

1933 Industr. & Engin. Chem. Nov. 402/1 Northrop..has used a semi-micromethod with an accuracy of 0·2 per cent.

1963 tr. Alexeyev's Quantitative Analysis i. 16 The main advantages of the micro- and semimicromethods are their high speed and the need for only very small amounts of material.

2. Used without hyphen as an independent word.

ΚΠ

1935 Industr. & Engin. Chem. (Analyt. ed.) Nov. 432/1 Semi-micro adaptations of the classical Kjeldahl method..have been reported.

1946 F. Schneider Qualitative Org. Microanalysis ii. 39 Bernhauer describes several types of micro or semi-micro receivers for vacuum distillations.

1946 F. Schneider Qualitative Org. Microanalysis vii. 195 A test for the nitro group carried out on a semi-micro scale.

1974 Encycl. Brit. Macropædia IV. 79/2 Samples..can be classified as macro (10⁻¹ g), semi-micro (10⁻¹ − 10⁻³ g), micro (10⁻³ − 10⁻⁶ g), sub-micro (10⁻⁶ − 10⁻⁸ g), nanogram (10⁻⁹ g), or picogram (10⁻¹² g).

1976 Lancet 13 Nov. 1091/2 Plasma creatinine (semi~micro alkaline-picrate method) and urea (diacetyl~monoxime method) concentrations were measured.

This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2022).

单词	semimicro-
释义	semimicro-comb. formadj. (As combining form, sense 1)Stress is usually determined by a subsequent element and vowels may be reduced accordingly. (As adjective, sense 2) Brit. /ˌsɛmɪˈmʌɪkrəʊ/, U.S. /ˌsɛmiˈmaɪkroʊ/, /ˌsɛmaɪˈmaɪkroʊ/ Etymology: < semi- prefix 1a(a) + micro- comb. form 2a Chemistry. 1. Formative element denoting a scale of quantitative analysis between micro-scale and macro-scale (commonly 0·01–0·1 gramme). semimicroanalysis n. Brit. /sɛmɪˌmʌɪkrəʊəˈnalᵻsɪs/ , /ˌsɛmɪmʌɪkrəʊəˈnalᵻsɪs/ , U.S. /ˌsɛmiˌmaɪkroʊəˈnæləsəs/ , /ˌsɛmaɪˌmaɪkroʊəˈnæləsəs/ ΚΠ 1951 A. I. Vogel Text-bk. Quantitative Inorg. Anal. (ed. 2) xi. 814 Semi-micro-analysis is concerned with the manipulation of 10–100 mg. of material, whilst micro~analysis deals with 1–10 mg. of material. semimicro-analytical adj. Brit. /sɛmɪˌmʌɪkrəʊanəˈlɪtᵻkl/ , /ˌsɛmɪmʌɪkrəʊanəˈlɪtᵻkl/ , U.S. /ˌsɛmiˌmaɪkroʊˌænəˈlɪdᵻk(ə)l/ , /ˌsɛmaɪˌmaɪkroʊˌænəˈlɪdᵻk(ə)l/ ΚΠ 1938 Jrnl. Soc. Chem. Industry Dec. 464/1 (heading) The determination of free and saline ammonia using a semi-microanalytical method. semimicro-determination n. Brit. /sɛmɪˌmʌɪkrə(ʊ)dᵻtəːmᵻˈneɪʃn/ , /ˌsɛmɪmʌɪkrə(ʊ)dᵻtəːmᵻˈneɪʃn/ , U.S. /ˌsɛmiˌmaɪkroʊdəˌtərməˈneɪʃ(ə)n/ , /ˌsɛmaɪˌmaɪkroʊdəˌtərməˈneɪʃ(ə)n/ ΚΠ 1937 Industr. & Engin. Chem. (Analyt. ed.) 15 June 296 (heading) Micro-, semimicro-, and macro-determination of halogens in organic compounds. semimicro-method n. Brit. /ˌsɛmɪˈmʌɪkrə(ʊ)ˌmɛθəd/ , U.S. /ˌsɛmiˈmaɪkroʊˌmɛθəd/ , /ˌsɛmaɪˈmaɪkroʊˌmɛθəd/ ΚΠ 1933 Industr. & Engin. Chem. Nov. 402/1 Northrop..has used a semi-micromethod with an accuracy of 0·2 per cent. 1963 tr. Alexeyev's Quantitative Analysis i. 16 The main advantages of the micro- and semimicromethods are their high speed and the need for only very small amounts of material. 2. Used without hyphen as an independent word. ΚΠ 1935 Industr. & Engin. Chem. (Analyt. ed.) Nov. 432/1 Semi-micro adaptations of the classical Kjeldahl method..have been reported. 1946 F. Schneider Qualitative Org. Microanalysis ii. 39 Bernhauer describes several types of micro or semi-micro receivers for vacuum distillations. 1946 F. Schneider Qualitative Org. Microanalysis vii. 195 A test for the nitro group carried out on a semi-micro scale. 1974 Encycl. Brit. Macropædia IV. 79/2 Samples..can be classified as macro (10⁻¹ g), semi-micro (10⁻¹ − 10⁻³ g), micro (10⁻³ − 10⁻⁶ g), sub-micro (10⁻⁶ − 10⁻⁸ g), nanogram (10⁻⁹ g), or picogram (10⁻¹² g). 1976 Lancet 13 Nov. 1091/2 Plasma creatinine (semi~micro alkaline-picrate method) and urea (diacetyl~monoxime method) concentrations were measured. This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2022). < comb. formadj.1933
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