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unidentate
unidentate adj.
Brit. /ˌjuːnᵻˈdɛnteɪt/
, U.S. /ˌjunəˈdɛnˌteɪt/
(also uniˈdentated) Zoology and Botany having a single tooth-like serration.ΚΠ
1819 G. Samouelle Entomologist's Compend. 222 Antennæ with their internal base unidentate.
1822 J. Parkinson Outl. Oryctol. 201 Ancilla olivula: unidentated at the base.
1828 J. Stark Elements Nat. Hist. II. 266 Mandibles small, depressed, pointed and entire, or unidentated in the internal side.
1833 W. J. Hooker in J. E. Smith Eng. Flora V. i. 124 The lower [lobes of the leaves]..frequently unidentate.
1856 W. Clark tr. J. van der Hoeven Handbk. Zool. I. 357 Mandibles small, narrow, unidentate or edentulous.
unidentate
unidentate adj.
Brit. 
/ˌjuːnᵻˈdɛnteɪt/
, /ˌjuːnᵻˈdɛnteɪt/U.S. /ˌjunəˈdɛnˌteɪt/
Chemistry. = monodentate adj. at mono- comb. form 1./ˌjunəˈdɛnˌteɪt/ΚΠ
1937 H. Diehl in Chem. Rev. Aug. 39 Because of the little attention which this field has attracted, the simple variation of acidic and coördinating groups in the polydentate molecules has escaped investigation. The following classification is, however, obvious: A. Unidentate 1. Either acidic or coördinating (groups held in the coördination sphere) B. Bidentate... C. Tridentate.
1984 N. N. Greenwood & A. Earnshaw Chem. of Elements (1986) vi. 188 The BH4− ion itself provides a rare example of a ligand that can be unidentate, bidentate, or tridentate.
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